s1 (1.5) statistics.notebook march 15, 2016 · s1 (1.5) statistics.notebook march 15, 2016 mean...

S1 (1.5) Statistics.notebook March 15, 2016

Daily Practice 1.2.2016

Q1. Round 81.55 to 1 decimal place

Q2. 324 x 50

Q3. 67.54 - 0.388

Q4. What type of angle is an angle of 1710?

Q5. 246 ÷ 4

Today we will be learning how to work out the average

of a set of numbers.

Homework due Wednesday

Mean (Average)

The mean is all the numbers added together divided by the number of numbers.

Example:

What is the mean of 2, 3, 4, 8, 12, 1?


Q1. Round 31.49 to the nearest unit

Q2. Write two hundred thousand and twenty seven in digits

Q3. 6.7 x 50

Q4. -4 + (-3)

Q5. Give an example of a reflex angle

Today we will be learning how to work out the mean & median of a data set.

Homework due tomorrow.

Mean (Average)

Calculate the mean of the

following sets of numbers

(a) 1, 1, 3, 4, 5, 0, 0

(b) 10, 5, 6

(c) 2, 3, 8, 4, 1

(d) 1, 8, 8, 6, 7


Mean (Average)Use a calculator to work out the mean for each:

1. Jenny receives the following amounts of pocket money each week depending on how many chores she completes

£4, £2.20, £5, £3.50, £7

2. The following are the ages of pupils in a class

12, 12, 13, 11, 14, 12, 12, 13, 11,

3. Jake gets the following results in his tests

26, 58, 64, 91, 86, 82, 83, 89



Q2. 3485 ÷ 100

Q3. 8 - 2 x 5

Q4. 45 x 500 Q5. 32÷ 5

Today we will be learning about median.

Homework due today.

Mean (Average)

Height of pupils

Derek 152cm

Chloe 166cm

Danny 151cm

Michael 148cm

Rhys 148cm

Nicole 152cm

Douglas 154cm

Darren 169cm

Rachel 155cm

Eilidh 156cm

Connor 159cm

Zoe 153cm

Brooke 161cm

Tiegan

Miss Deely 169cm

2193 ÷ 14 =



Q2. 34.56 x 100

Q3. 90 x 50

Q4. 4 - 2 x 5 Q5. Give an example of an acute angle

Today we will be continuing to learn about the median.


Median (Average)

The median is another type of average.

To get the median, arrange your data from lowest to highest.

The median is the middle number.

2 3 4 5 6

If there are 2 middle numbers, add them together and divide by 2.

2 3 4 5 6 7

Derek 152cm

Chloe 166cm

Danny 151cm

Michael 148cm

Rhys 148cm

Nicole 152cm

Douglas 154cm

Darren 169cm

Rachel 155cm

Eilidh 156cm

Connor 159cm

Zoe 153cm

Brooke 161cm

Tiegan

Miss Deely 169cm


Q1. -4 x 3

Q2. 13 + 15 ÷ 3

Q3. Calculate the size of a

Q4. Round 81.22 to the nearest unit Q5. 4.5 x 600

a

0

48

0

Today we will be learning about the median and mode.

Median (Average)

Examples: Calculate the median

(a) 2, 3, 7, 1, 8, 6, 2

(b) -4, -3, 6, 7, 18, 19, 22, 14

Mode (Average)

The mode is the number that appears most often in a data set.

Examples: State the mode from the following

(a) 2, 3, 7, 8, 2, 1, 4, 8, 3, 7, 9, 7

(b) 0.8, 8.5, 3.8, 0.08, 0.8, 0.98



Q1. 8 - (-9)

Q2. 54.5 x 60

Q3. 14 ÷ 5

Q4. What is the mean of 2, 3, 4, 5 and 6?

Q5. 5 x (2 + 3)

Today we will be learning to work out the

mean, median, mode and range of a data set.

Median and Mode Questions

Write the median and mode for each data set

(a) 2, 3, 7, 8, 9, 10, 14, 2, 11

(b) -3, -1, 5, 6, 7, 7, 8

(c) 23, 38, 42, 101, 97, 68, 23, 49, 34, 97, 23, 12

Range

The range of a data set tells us how widely spread the data is.

It is the highest number - lowest number.

Examples: State the range of the following

(a) 16, 17, 22, 24, 38, 19, 4, 6, 15, 81

(b) 1, 2, 3, 4, 5, 7, 8, 11, 10

Mean, Median, Mode and Range

Questions: Calculate the mean, median, mode and range of the following

(a) 2, 3, 4, 5, 6, 6, 7, 8,

(b) 10, 20, 40, 50, 70, 80, 90, 90

(c) -2, 4, 7, 9, 11, 15, 4, 6, 7,


Q1. 2 x 3 x 5

Q2. Round 645.336 to 1 decimal place

Q3. 48.5 x 200

Q4. -8 - (-16) Q5. 67 ÷ 5


Today we will be learning to make a tally table and correctly draw a bar chart to display our answers.


20 Questions Mental Maths

Today we will be continuing to learn how to draw and interpret bar charts.

Tally Tables

Type of Pet Tally Frequency

Dog

Cat

Fish

Other

Total

Bar Chart



Q2. 3 - 4 x 5

Q3. 7.8 x 100

Q4. 65 x 7

Q5. 32 ÷ 5


Today we will be continuing to learn how to

interpret charts.

Line Graphs

A line graph displays data that is ordered and connected. They are often drawn to show how data changes over a period of time.

Example: Create a line graph to display the number of holidays booked with a company over a 1 year period

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

No. of 1 3 2 4 2 1 6 7 5 4 1 6

hols

('oos)

24 squares along

(12cm)

16 squares up

(8cm)


Q1. Round 71.882 to 2 decimal places

Q2. 5677 x 40

Q3. What type of angle is 900?

Q4. What is the size of x?

Q5. -5 x -4 x 6

530

x0

4

8

12

16

20

24

28

32

Today we will be continuing to learn how to draw

and interpret line graphs.


Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

No. of 1 3 2 4 2 1 6 7 5 4 1 6

hols

('oos)

Today we will be completing a survey on the number of

cars that are different colours.



Create a tally table to collect your data.

You can do it on car colour or type of vehicle or name of vehicle.

Colour of Car Tally Frequency

Blue

Black

Silver

Red

Vehicle Type Tally Frequency

Car

Bus

Van

Truck

Other

Brand of Car Tally Frequency

Nissan

Toyota

Mercedes

Vauxhall

Today we will be creating a bar chart to display the

information we have collected.

Type of Vehicle Tally Frequency

Car

Bus

Lorry

Jeep

Motorbike

Other

Total


Colour of

VehicleTally Frequency

Blue

Black

Green

Silver/White

Red

Other

Total

Bar Graphs

Colour of Car

Fre

quenc

y

20

40

60

80

100

Bar graphs should always be labelled

Red Green Blue Silver Black

The numbers on the axes need to

be the same distance apart

Today we will be creating a bar graph of our

information collected on the computers.

Daily practice 1.3.16

Q1. Round 856 to the nearest hundred

Q2. 56.55 x 100

Q3. What type of angle is 3470?

Q4. What is the mean of 2, 3, 4, 5, 1?

Q5. -15 + 18

Today we will be learning how to draw a stem and leaf

diagram.

Stem and Leaf Diagrams

Example: Display the following data using a Stem & Leaf diagram

Weights of members of a fitness class

54kg 63kg 48kg 67kg 81kg 95kg 66kg 74kg 77kg 83kg

(i) State the range of weight


Stem and Leaf DiagramsDaily Practice 2.3.16


Today we will be continuing to practise reading

different types of graphs.

Interpreting Graphs

Body Mass Index (BMI) is a number calculated from your weight

and height. It roughly gives the percentage of your total weight that comes from fat.

The graph shows the BMI for different heights and weight.

Body Mass

Index (BMI) Chart

William weighs 100 kg and he is

1·75 m tall.

(a) What is William’s weight

category?

(b) Why do you think we cannot overly

rely on BMI as an accurate measure

of whether a person is considered to

be overweight or underweight?

Interpreting Graphs

How many pupils are more than 34 kg in weight and less than 130 cm in height?

A school nurse measured each pupil’s weight and height.

She put the information on a chart using an ‘X’ for each pupil.


Page 173 - 177

Q2, 3, 5, 10, 11,

12



Q2. -6 x 5

Q3. 48 x 50

Q4. 32.44 ÷ 100 Q5. What type of angle is 630?

Today we will be continuing to read charts

and tables.


Q1. Round 817 to the nearest hundred

Q2. 4 - 3 x 2

Q3. (-5) x (-4)

Q4. 38.96 x 100 Q5. What is the range of

2, 6, 7, 8, 15, 1, 11?

Today we will be learning how to read pie charts.

Pie charts are a visual way of showing how something is divided up.

We use fractions when we talk about pie charts.

Pie Charts


Pie Charts Pie Charts

Examples:

There are 28 students in a class. The pie chart below represents how they get to school.

Walk

BusCycle

Pie Charts

2. There are 100 people altogether.

Curry

Pizza

Pasta

Burger

Daily Practice 8.3.2016Q1. Round 87 to the nearest ten

Q2. Write five thousand and eighty four in digits

Q3. 4.56 x 100

Q4. -15 - 7

Q5. What is the median of 2, 3, 5, 6, 7, 8, 9?

Today we will be continuing to learn about pie

charts.

Pie Charts


Pie Charts Daily Practice 9.3.16Q1. 36 x 7 Q5. 56.7 x 100

Q2. 345 - 297

Q3. Round 43.552 to 2 decimal places

Q4. What is the range of 3, 4, 5, 6, 1, 7, 9?

7

14

21

28

35

42

49

Today we will be continuing to learn about pie

charts.

Pie Charts

Pie Charts Pie Charts with angles

1200

There are 300 people

altogether

0- 18yrs19- 49yrs

19- 49yrs




Q2. -18 + (-4)

Q3. 85.4 x 100

Q4. What is the median of 7, 6, 2, 3, 1, -4?

Q5. What are all the odd numbers between 1 and 10?

Revise using materials online

at www.missdeely.weebly.com

Revise using materials online

at www.missdeely.weebly.com

Today we will be learning about probability.

The probability of an event occuring means the liklihood that it will happen.

P(Event Occurring) = No. of favourable outcomes No. of possible outcomes

Probability is measured usually as a fraction or a decimal between 0 and 1.

Impossible Certain

Probability

0 0.5 1

Probability

Examples:

1. What is the probability of choosing an Ace from a deck of cards?

2. There are 5 red cars, 2 grey cars and 3 black cars in a car park. If you choose a car at random, what is the probability it will be red?



Q1. 45 + 38

Q2. -4 + 15

Q3. 5 + 2 x 8

Q4. 1.45 x 1000

Q5. What is the

size of the missing

angle?

430?

Today we will be continuing to learn about probability.

Test this week!

Look at revision sheets online.

Probability

Example:

What is the probability of rolling a dice and getting an even number?

Probability Probability

Task:

In pairs, work out the following probabilities for a full deck of cards:

1. Getting an Ace 6. Getting a red 4

2. Getting a red card 7. Getting a queen

3. Getting a picture card (J, Q, K) 8. Getting an even number

4. Getting a 7 9. Getting an odd number

5. Getting a 7 of clubs 10. **Getting a prime number

s1 (1.5) statistics.notebook march 15, 2016 · s1 (1.5) statistics.notebook march 15, 2016 mean...

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