01a mean, median, mode for the ti 84
DESCRIPTION
Chapter 1.1aTRANSCRIPT
CALCULATOR LESSON
Chapter 1 Bitsy Griffin
1Mean, Median, Mode, Minimum, Maximum, Range, & Quartiles
Vocabulary
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Minimum : Lowest value in data set (lower
extreme) Shown on Calculator as Min
Maximum: Largest value in data set (Upper
extreme) Shown on Calculator as Max
Vocabulary
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Range: Difference between max & min values
Caution: Min and Max are not the first and last
values! (you have to order the values first!)
Vocabulary
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Quartiles: Divides data into four sets (after
ordering from least to greatest) Q1 – Quartile 1 (Lower quartile) Med – Quartile 2 (Median) Q3 – Quartile 3 (Upper quartile)
InterQuartile Range Middle 50% (falls between Q1 & Q3)
FOR FINDING MEAN, MEDIAN, QUARTILES, RANGE ON
CALCULATOR(TI83/84)
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Tech Manual
Steps
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Enter a list Hit Stat key Choose edit Enter data in list 1 (push enter after
each value)
Steps
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Using the Info Hit Stat Choose Calc Choose 1: 1-Var Push Enter twice
1-Var Stats
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Mean Top number listed
Scroll down for everything else. They are all listed
Do the appropriate math to find the range.
X
Steps to find Mode
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Hit the Stat keyChoose 2: SortA( Hit 2nd, then hit #1
This enters L1 to be sorted
Hit EnterCalculator shows Done
The list has been put in order.
To look at the ordered list: Hit Stat -- Edit Find mode in list by comparing the numbers of each piece
of data.
Clear old data
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Clearing the old data out is important so you can start new lists.
Go to the ListSteps:
Hit the up arrow Hit Clear Hit Enter
Practice #1, 3, 5, 7
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Problem 1 Mean≈18.67 Q1=15 Median=18.
5 Q3=22 Range=12 Mode=none
Problem 3 Mean=8.625 Q1=6 Median=8.5 Q3=10 Range=10 Mode=6 &
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Assignment
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Complete problems not covered in class