prs lesson
TRANSCRIPT
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Demonstrating the Use ofTechnology in Middle SchoolStatistics Lessons
A project forMathematics 599
Capstone
By: Robert Padian
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Lesson 1- Gathering and
Organizing Data The small keypads are designed to allow
you to interact with one another in
contributing to the progress of the lesson We will first use them to gather someinformation from you
We will then use them to help organizethat data to see what information we candraw from it
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Short Discussion
Is Information
the same
as Data?
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How to use the Keypad
The On/Off switch is at the lower left.
Slide up to turn on the device, down to turn it off
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How to use the Keypad
The Enter Key
You choose your answer with the variouskeys and then they appear on the littlescreen. When you have what you want tosubmit you just press the Enter key
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Enter
Pressing the Enter Key sends whatever ison the screen.
For some questions you can submit 2answers like a max and a min value but if you press Enter twice after putting ina value, that becomes both answers.
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How to use the Keypad
There are a few groups of keys thatsupport different uses, and a few functionsthat the system allows users to use.
The screen allows you to see the answersthat you type, but does not show thequestions.
For those you need to look up at the boardand listen.
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The Numeric Choices
The digits 0, 1 through 9
A decimal (.) point and a minus (-) signcomplete the numeric input choices.
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Using the pad
Turn on the Keypad
When it is finished connecting, the screenwill show Scanning Found and MyClass with a number.
Press Enter.
The screen will display ID: so enter the
last 4 digits of the long PRSRR number onthe sticker on the back of the keypad, thenpress the Enter key
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The Keypad
Alphabet choices A, B, C, D, E
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The Keypad
The True/False selections
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The Keypad
The alphabetic choices can be extended.
Press T and arrow up or down and the letters
appear in the next position in the window. Press F and the arrows scroll through the letters
at the early part of the alphabet.
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Lets collect some answers
Enter the first letter of your last name. If you need to enter A through E, F and T you
have a key just for that.
You can reach G through M from the F key andthe down arrow. You can reach N through S from T and the up
arrow. U through Z are reached from T and down
arrow. Remember to press Enter after picking your
letter!
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Getting Feedback
Answer true or false:
Boston is the capital of Massachusetts.
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Another data collection
True or false
Baltimore is the capital of Maryland.
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A bit of research
We have had a red-haired president.
T or F?
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Another poll
How many left-handed Presidents has theUnited States had?
Pick whichever number you think answersthe question.
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Presidential poll I
Thomas Jefferson had red hair.
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Presidential poll II
Lefties include1. James Garfield
2. Herbert Hoover
3. Harry Truman
4. Gerald Ford
5. Ronald Reagan
6. George H W Bush7. Bill Clinton
8. Barack Obama
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Another collecting question - Colors
Pick your favorite of the following colors byentering a choice from the letter buttonsnext to the numbers pad
Choose the letter corresponding to thecolor option
A Red B BlueC Green D Yellow
E Other
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Another Question
Pick your favorite sport
A Baseball
B BasketballC Football
D Hockey
E Soccer
F Lacrosse
G Other
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And another
Choose your favorite teams whose gameswould you most enjoy watching or attending?
Order up to 3, type the codes without spacing,
press Enter once when finished.
1 Red Sox 2 Yankees 3 Mets
4 Tigers 5 Dodgers 6 Indians
7 Patriots 8 Jets 9 Giants
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Team Favorites
Display results of 1st, 2nd, 3rd placechoices.
Save results as input to later discussion ofpreferential voting as it might change top-3winners.
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Bar Graphs
These are a simple way to visualize datathat can be counted in categories
Consider a NY Times article that repeateda survey result. They showed the numberof minutes children spend in each of 4activities each day
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NY Times Graphic
As published in the NewYork TimesMagazine, The Way
We Live Now,Kindergarten Cram
3 May 2009, p13,14
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Minutes spent each day in
These are the numbers by category
Literacy 89
Math 47 Test Prep 21
Free Play 19
REP1
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Slide 27
REP1 Robert E Padian, 5/8/2009
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What does the Times tell us?
What does the graph tell us?
What do the numbers tell us?
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Bars
A more common representation forcomparing data by category
Useful when comparing numbers bynames data
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Another way of looking or seeing
Acti ities
iteracy Math est re ree lay
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Another way of looking at it
A ti itie
i tera y
Math
e t re
ree lay
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Horizontal or Vertical
Vertical bars are useful when thecategories are numeric ranges and can becontinuous, like 1 to 10, 11 to 20, etc.
When categories are names, either maybe used. It depends on your point of view,esthetic etc.
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Kindergarten Data
What do the numbers tell us?
What does the graph tell us?
Which representation gives a message inthe least time?
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Comparing
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Discussing the Graphs
Which activity used the most time?
Which used the least? Was one almost the same as another?
Were some greatly different?
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A Vertical Special
When the chart data displays thefrequency of occurrence of data that fallsinto continuous, non-overlappingcategories, a special vertical bar chart orHistogram is built.
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Some graphic rules
Numeric scales are regular the distancefrom an axis is directly proportional to themagnitude of the value represented.
Start scale at 0 and each increment of 10,for instance, is the same distance from thelast instance.
Leave gaps for intervals in posssibly-continuous data to keep the relative scalelooking relevant.
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More work
We will continue on how to build bargraphs next time
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Lesson 2: Organizing Data
Stem-and-Leaf TablesFrequency Tables
Histograms
By: Matt Glavin
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Investigating Data
Part I Worksheet
Assemble in small groups
Answer the questions on the worksheet Prepare to answer questions using the
PRS
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What is the lowest test score?
a. 72
b. 60
c. 52 d. 55
e. 78
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What is the highest test score?
a. 76
b. 95
c. 100 d. 98
e. 99
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Answer:
Lowest test score: 52
Highest test score: 98
How far apart are these two test scores?
Or: What is the distance between them?
Type in your answer using the PRS
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Answer:
The distance between the two scores is46.
It is found by subtraction:
98 52 = 46
46 is called the RANGE of the test score data.
The data ranges from 52 all the way up to 98.
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Range Question
What is the RANGE of the following data?:
52, 29, 60, 73, 41, 88, 35
Type in your answer using the PRS
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Answer:
88 29 = 59
Therefore, the RANGE (distance) is 59.
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Middle Score Question
Back to our original test score data
What is the middle score of all of the data?
a. 55b. 77
c. 78
d. 89e. 94
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Multiples Question
Using the PRS, list all of the test scores
that appear more than once.
A.55B.60
C.68
D.73E.76
F. 77G. 82
H. 84
I. 88J. 95
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Answer:
60, 73, 76, 77, and 84
Follow-up Question:
One of these test scores above appears more
frequently than the others.
Which test score has the greatestFREQUENCY?Type in the answer using the PRS.
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Frequency
The test score 77 has a FREQUENCY of3
The other test scores60, 73, 76, and84appeartwice, so they each have aFREQUENCY of 2.
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Part II Worksheet
Assemble in small groups
Read and complete the first two tables
on the Part II Worksheet
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Table of Scores
Interval Scores
50-59 52, 55
60-69 60, 60, 68, 66
70-79 76, 75, 77, 72, 73, 78, 76, 77, 73, 77
80-89 85, 81, 83, 89, 84, 84, 88, 82
90-99 95, 92, 94, 90, 98
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Ordered Table of Scores
Interval Scores
50-59 52, 55
60-69 60, 60, 66, 68
70-79 72, 73, 73, 75, 76, 76, 77, 77, 77, 78
80-89 81, 82, 83, 84, 84, 85, 88, 89
90-99 90, 92, 94, 95, 98
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Stem-and-Leaf Table
Stems Leaves
5 2, 5
6
7
8
9
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Stem-and-Leaf Question:
Stem Leaves
8 5, 1, 3, 9, 4, 4
The above Stem-and-LeafTable
representssix different numbers.
Using the PRS, what integerdoes the
highlighted digit represent?
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Stem-and-Leaf Answer:
Stem Leaves
8 5, 1, 3, 9, 4, 4
Now continue completing therest of theStem-and-LeafTable
83 is the integer.
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Stem-and-Leaf Table
Stems Leaves
5 2, 56 0, 0, 8, 6
7 6, 5, 7, 2, 3, 8, 6, 7, 3, 7
8 5, 1, 3, 9, 4, 4, 8, 2
9 5, 2, 4, 0, 8
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Ordered Stem-and-Leaf Table
Stems Leaves
5 2, 56 0, 0, 6, 8
7 2, 3, 3, 5, 6, 6, 7, 7, 7, 8
8 1, 2, 3, 4, 4, 5, 8, 9
9 0, 2, 4, 5, 8
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Stem-and-Leaf Grid-Table
Stem Leaves
5 2 5
6 0 0 6 8
7 2 3 3 5 6 6 7 7 7 8
8 1 2 3 4 4 5 8 99 0 2 4 5 8
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Frequency Table
Score Absolute
Frequency
Relative
Frequency
50-59 2 2 out of 29 scores 7 %
60-69 4 4 out of 29 scores 14 %
70-79 10 10 out of 29 scores 34 %
80-89 8 8 out of 29 scores 28 %90-99 5 5 out of 29 scores 17 %
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Frequency Table
Score AbsoluteFrequency
Relative
Frequency
50-75 ___ out of 29 scores ____ %
76-100 ___ out of 29 scores ____ %
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Frequency Table Question:
Using the PRS, type in the AbsoluteFrequency for the 50-75 test score interval
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Answer:
10 is the ABSOLUTE FREQUENCY forthe 50-75 test score interval.
F T bl
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Frequency TableMultiple-Choice Question:
Using the PRS, select the Relative
Frequency of the data items in the 50-75
interval:
a. 10 %
b. 25 %
c. 34 %d. 52 %
e. 75 %
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Frequency Table
Score AbsoluteFrequency
Relative
Frequency
50-75 10 10 out of 29 scores 34 %
76-100 19 19 out of 29 scores 66 %
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Stem-and-Leaf Grid-Table
Stem Leaves
5 2 5
6 0 0 6 8
7 2 3 3 5 6 6 7 7 7 8
8 1 2 3 4 4 5 8 9
9 0 2 4 5 8
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Histograms
Difference between
Bar Graphs and Histograms
Question:
In what month is your birthday?
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Bar Graph vs. Histogram
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Histograms
Bars are contiguous (no spaces in-between)
Bars are ordered numericallyon abaseline
Height of bars indicates number of dataitems within the bars interval.
Width of bars is (generally) consistent
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Width of Bars/Intervals
Consistent width of bars/intervals isroughly found by dividing the RANGE ofthe data by the desired number of
bars/intervals.
E l D t i i B
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Example: Determining BarWidth
92 (HIGH) 37 (LOW) = 55 (RANGE)
I want (roughly) 10 Bars/Intervals
55 / 10 = 5.5 (rough) Bar/Interval Width
Thus, 5 is a good, regularwidth for the data:
12 Bars ofwidth-5from 35 up to 95
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Bar Width Question
Your data has the following characteristics:
Max value is 128
Min value is 42
I want roughly 20 intervals.
Type in your response to the following question:
What is a good, regularwidth for my bars?
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Answer:
128 (HIGH) 42 (LOW) = 86 (RANGE)
86/20 (Desired number of intervals) = 4.3
Thus, 4, or even 5, would be good regular
widths for the bars used to display mydata.
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Histogram Worksheet Part V
Assemble in small groups
and Complete the Worksheet
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Bar Width Considerations
Too narrow: Too many similar-height bars
Too wide: Too few choppy bars
Goldilocks Just-Right Width: Difference
in heights of consecutive bars is smallenough to suggest curve of data results.
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Discussion Wrap-up Questions
How are Stem-and-Leaf Tables better atdisplaying data than Histograms?
How are Histograms better at displayingdata than Stem-and-leaf Tables?
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Lesson 3: Circle Graphs
By: Wing Leung
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Out of a class of 30 students:
Number ofSiblings Frequency
0 81 7
2 9
3 5
4 1
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# of
Siblings Freq.0 8
1 7
2 93 5
4 1
5 0
1
sibling
23%
3siblings
17%
2
siblings
30%
4
siblings3%
0
siblings
27%
Circle Graph
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Out of a class of 30 students, whatpercentage of students have 0 siblings?
0 siblings
siblings
3
siblings
30
3 siblings
sibling
3
0 siblings
siblings3
siblings30
3 siblings
sibling3
0 siblings
siblings3
siblings30
3 siblings
sibling3
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Out of a class of 30 students, what percentageof students have more than 3 siblings?
0 siblings
siblings
3
siblings
30
3 siblings
sibling
3
0 siblings
siblings3
siblings30
3 siblings
sibling3
0 siblings
siblings3
siblings30
3 siblings
sibling3
O t f l f 30 t d t h t
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Out of a class of 30 students, whatpercentage of students have at least 2
siblings but less than 4?
sibling23
3
siblings2
siblings
30
4siblings
3
0siblings
2
A.30
B.C.4D.5E.None of the
above
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True or False:More students have 3 siblings than 0 siblings.
0 siblings
siblings
3
siblings
30
3 siblings
siblings
3
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Out of a class of 30 students, how manystudents have 2 siblings?
0 siblings
2
siblings
3
2 siblings
30
3 siblings
siblings
23
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Out of a class of 30 students, how many studentshave 2 siblings?
siblings23
3 siblings
2
siblings
30%
siblings
3
0 siblings2
Percentage Number ofPeople
30% out of the 30 students
=
0.30 x 30 students = 9 students
M k i l h
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Ice Cream Flavor Frequency
Vanilla 6
Chocolate 3Strawberry 4
Cookies & Cream 6
Mint Chip 2
Other 9
Make your own circle graph
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Out of a class of 30 students:
Vanilla:
30x = 600
x = 600/30 = 20%
Chocolate:
30x = 300x = 300/30 = 10%
Ice CreamFlavor Frequency
Vanilla 6
Chocolate 3
Strawberry 4
Cookies &Cream 6
Mint Chip 2Other 9
6
30 100
x
!
3
30 100
x
!
Wh t t f t d t f Oth ?
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What percentage of students prefer Other?
Ice CreamFlavor Frequency
Vanilla 6
Chocolate 3Strawberry 4
Cookies &Cream 6
Mint Chip 2
Other 9
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Put the percentages from least to greatest:
A.StrawberryB.Other
C.ChocolateD.VanillaE.Mint Chip
Ice CreamFlavor Frequency
Vanilla 6
Chocolate 3
Strawberry 4
Cookies &Cream 6
Mint Chip 2Other 9
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Which two percentages are the same?
A.StrawberryB.Other
C.ChocolateD.VanillaE.Mint ChipF.Cookies & Cream
Ice CreamFlavor Frequency
Vanilla 6
Chocolate 3Strawberry 4
Cookies &Cream 6
Mint Chip 2
Other 9
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Favorite Ice Cream Flavor
Chocolate10%
Strawberry13%
Other30%
Cook es
Cream
20%
Mint Chip
7%
Vanilla
20%
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What you should know:
1. Read a circle graph
2. Convert percentages to number of people3. Convert number of people to percentages
4. Create a circle graph
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Wrap Up:
Circle graphs are normally represented by:
A.FractionsB.DecimalsC.PercentagesD.Number of People
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Wrap Up:
40 people were surveyed on favorite color.10% of them said blue.How many people chose blue?
A.4B.5
C.6D.10E.None of the above
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Wrap Up:
40 people were surveyed on favorite color.5 of them said green.What percentage of people chose green?
A. 5%B. 40%
C. 10%D. 12.5%E. 8%
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Wrap Up:
40 people were surveyed on favorite color.25% of them said yellow.
How portion of the circle graph is yellow?A.1/2B.1/3
C.1/25D.1/40E.1/4
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Wrap Up:
40 people were surveyed on favorite color.25% of them said yellow.
How portion of the circle graph is not yellow?A.15B.25/40
C.15/40D.1/4E.3/4
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Homework:
1. Survey 20 people about Month of Birth.2. Create a frequency table.3. Convert all frequencies to percentages.4. Create circle graph.5. Make sure to label graph appropriately.
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Exploring Measures of Center
Mode, Median, and Mean
By Ben Rockoff
M d
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Mode
The data value or category occurring with thegreatest frequency (appears the most).
Ex. 4, 5, 4, 6, 3, 7, 4, 5, 4, 4- rearrange numbers from least to greatest
- 3, 4, 4, 4, 4, 4, 5, 5, 6, 7
Mode = 4
M di
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Median
The median is the midpoint of adistribution; that is, 50% of values arelower than or equal to the median and
50% are higher than or equal to themedian.
The middle number in an ordered set ofnumerical data.
The location of the Median
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The location of the Median The median of an odd number of data values
is located in the position (n+1)/2.
The median of an even number of values isdefined to be the average (mean) of themiddle two values, on either side of position(n+1)/2.
(n+1) / 2 when n = 7= (7+1) / 2= 8 / 2= 4
(n+1) / 2 when n = 8
= (8+1) / 2= 9 / 2= 4.5 so avg location 4 and 5
Pictorially the median divides
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Pictorially, the median divides
the distribution into two equalareas.
median median median
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What is the mode of this data
set?[ 8, 3, 5, 8, 7, 3, 8 ]
3, 3, 5, 7, 8, 8, 8
Number 8 occurs 3 times,
Number 3 occurs 2 times,
Number 5 occurs 1 time,
Number 7 occurs 1 time
Mode is 8
True / False
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It is possible to have more than one
mode for a set of data?
0
1
2
3
5
6
78
9
10
2 3 5 6 7
Frequency
Two Modes: 3 and 6BimodalTrue
Which of the following statements
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is true?
45, 37, 48, 27, 31, 35, 42, 30A) The set is bimodal
B) The mode is 27
C) The mode is 45
D) This data set has no mode
Each number only appearsonce
A group of students were asked to
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identify how many siblings they have.
Here are the results.0 siblings
1 sibling
2 siblings
3 siblings
4 siblings
more than 4siblings
Which statement is true?
A) This data set has nomode
B) Mode is 0C) Mode is 2
D) Most of of the studentshave more than 4
siblingsNote - there is a difference between having no mode and having amode of zero
Mode is the best (only) measure
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of central tendency for which type
of data?Enter
C for categorical data
N for numerical data(quantitative)
There is no middle regarding something such as
favorite ice cream and you certainly cannotaverage categorical data
What is the median for the
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following set of data?
12, 9, 15, 9, 7, 13, 16 Step 1 - rearrange data from least to greatest
7, 9, 9, 12, 13, 15, 16
Step 2 - count the number of elements within the set,7 numbers in the distribution - note 7 is odd
Step 3 - locate middle
(n+1) / 2 (7+1) / 2 = 4The number at the 4th position is 12
Median = 12
What is the median of thef ?
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following numbers?
9, 11, 1, 14, 14, 6 Step 1 - rearrange from least to greatest1, 6, 9, 11, 14, 14
Step 2 - count the number of elements
6 numbers in the distribution - note 6 is even Step 3 - locate middle
(n+1) / 2 (6+1) / 2 = 3.5Numbers located at position 3 (9) and 4 (11) need to averaged
(9+11) / 2 = 10
Median = 10
Given the following stem and
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gleaf plot?
What is the mode?
16
Given the following stem and
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gleaf plot?
What is the median?
26
7 8 10 24 25 30
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7, 8, 10, 24, 25, 30
The median is 17
Please enter one new number, so that thenumber which you enter becomes the new
median.
10 new number 24
7 8 10 24 25 30
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7, 8, 10, 24, 25, 30
If you were to add a number less than 10to the above set, what will the new medianbe?
Adjusted Median = 10
7 8 10 24 25 30
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7, 8, 10, 24, 25, 30
If you were to add a number greater than24, what would the new median be?
Adjusted median = 24
7 8 10 24 25 30
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7, 8, 10, 24, 25, 30
If you want to increase your median, thenew piece of data should be?
A) Less than the original median (17)
B) Greater than the original median (17)
C) Between 10 and 24
D) Must be the largest value in set
E) Equal to original median (17)
A statistic is called resistant if it ist t l i fl d b
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not strongly influenced by
extreme values (outliers)
Choose one of the following
- median- mean
The __________ is resistant to outliers.
The median of the data sets 1,2,3,4,5 and 1,2,3,4,100 arethe same.
Will adding a new data point (15) to
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these distributions have the same
effect on the medians (Yes/No)?
Median for bothis 8 prior toentering newdata point
Adjusted median = 12
Adjusted median = 8
No
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Assessment:
MCAS Review
1. Sharon took 24 nighttime photographs.Th ti i d f h
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The exposure times, in seconds, for herphotographs are represented in the stem-
and-leaf plot below.
What is the median exposure time forher photographs?
A. 24 seconds
B. 25 secondsC. 27 secondsD. 28 seconds
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Davis is on the high school track team. The table below showsthe number of laps he ran around the schools track each day
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the number of laps he ran around the school s track each dayfor 7 consecutive days.
Number of Laps Each Day
Day Mon Tues Wed Thu Fri Sat Sun
Number ofLaps
8 11 7 9 10 11 12
What is the mode of this set of data?
The box-and-whisker plot below shows the distribution of the dailyhigh temperatures, in degrees Fahrenheit, in the town of Clifton
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g p , g ,during the year 2004. Based on the box-and-whisker plot, in whichof the following intervals of temperatures is it most likely that exactly50% of the daily high temperatures are located?
A. 38F to 54F
B. 38F to 81F
C. 54F to 72F
D. 54F to 81F
A contest is being held at a school fair for fifth-grade and sixth-gradestudents.
5
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There are 40 fifth-grade students at the fair. There are 30 sixth-grade students at the fair.
Each students name was written on one card and placed into a box.The principal will reach into the box and pick one card withoutlooking. The student named on the card will be the winner of thecontest.
What is the probability that the winner of the contest will be a sixth-grade student?
1
2
3
4
3
71
30
C.
D.
A.
B.
Jeremy calculates his cars gas mileage every time he buys gas
for his car The chart below shows the data from the last5 times
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for his car. The chart below shows the data from the last5 times
he bought gas.
Gas Mileage forJeremys Car
MilesGallons of Gas GasMileage
(miles per gallon)
370 11.3 32.74352 9.5 37.05
303 8.9 34.04
298 9.7 30.72
398 11.2 35.54
Based on the data in the chart, what is the range of gas mileage
forJeremys car?
Nick has the following items in a bag:7.
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1 red pencil,1 yellow pencil,1 green eraser,1 blueeraser
Nick will randomly select one pencil and one eraser from thebag. Both pencils are the same size and shape. Both erasers arethe same size and shape. The tree diagram below shows all thepossible combinations Nick can select.
What is the probability that Nickwill select a red pencil and a blueeraser?
A
B
C
D
The bar graph below shows the attendance at each of fivebasketball games.
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g
Which of the following is closest to the difference between the
least and the greatest attendance for the five basketballgames?
A. 35B. 55
C. 70
D. 125
The histogram below shows the scores for all the students who9.
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The histogram below shows thescores for all the students who took amathematics quiz.
took a mathematics quiz.
What percent of the students received a score of 80 or above?
A. 55%
B. 40%
C. 25%
D. 11%
The circle graph below shows the percent of students enrolled ineach of four foreign language classes being offered at a school.
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each of four foreign language classes being offered at a school.
No student is enrolled in more than one foreign language class.
The number of students enrolled in Italian is 36.
Based on the graph and the given data, what is the total numberof students enrolled in foreign language classes?
A. 72
B. 100
C. 116D. 180
Alecia surveyed some elementary schoolstudents about the methods they use to get to
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Based on Alecias results, what fractional part of thegirls surveyed ride the bus?
A) 7/13B) 2/5
C) 7/20
D) 1/5
students about the methods they use to get toschool each morning. Her resultsare shown in
the table below.
Transportation to School
Method Boys Girls
bus 24 28
car 18 30walk 10 16
bicycle 8 6
The list below shows the number of miles12
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The list below shows the number of milesSophie hiked on each of the 7 days.
What was the mean number of miles she hiked
each day?A) 1.5 miles
B) 1.6 miles
C) 1.8 miles
D) 2.0 miles
1.6, 3.1, 1.5, 2.0, 1.1, 1.8, 1.5
12
To order a burrito from Teresas Burrito Shop,
Jim always chooses 1 item from each column in
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Jim always chooses 1 item from each column in
the table below.Burrito Choices
Wrap Filling Topping
-plain -beans -sour cream
-wheat -beef -guacamole
-chickenWhat is the total number of ways that Jim can order a
burrito at Teresas Burrito Shop by choosing
1 wrap, 1 filling, and 1 topping?
A) 6B) 7
C) 10
D) 12
Ms. Ortega recorded the number of siblings(brothers and sisters) each student in her classh H d i h h li l b l
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has. Her data is shown on the line plot below.
Number of Siblings of Students in Ms. Ortegas Class
What is the total number of students in Ms. Ortegas class
who have 2 or fewersiblings?
A) 3 C) 20
B) 5 D) 12
Mr. Chang surveyed the fifth-grade students aboutwhere they would most like to go for a field trip.
The res lts of the s r e are sho n in the graph
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The results of the survey are shown in the graphbelow.
Based on the graph, where
would the greatest number
of fifth-grade students mostlike to go for a field trip?
A) Zoo
B) Museum
C) Farm
D) Other
The tally chart below shows the different ways the24 students in Ms. Mitchells class get to school.
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24 students in Ms. Mitchell s class get to school.
Which circle graph
best represents the
information in the
tally chart?
A
B
C
D
Erin recorded the height of a tomato plant
each week for four weeks Which of the
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each week for four weeks. Which of the
following would be best for Erin to use todisplay the change in the height of the
tomato plant?
A) A line graph
B) A pictograph
C) A circle graph
D) A Venn diagram
Jamie made the line graph below to show howmuch money he earned shoveling snow each
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y gweek for five weeks.
Based on the information in the graph,
which of the following statements is
true?
A) Most weeks Jamie earned moremoney than the week before.
B) Each week Jamie earned moremoney than the week before.
C) Most weeks Jamie earned less
money than the week before.D) Each week Jamie earned less
money than the week before.
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The heights, in inches, of the members of asoccer team are listed below
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soccer team are listed below.
Which is the outlier(s)?A) 50
B) 80
C) Both 50 and 80D) None of the above
50, 66, 61, 71, 62, 64, 70, 64, 63, 80, 72, 68