# Statistics: Finding the Mean

In this worksheet, students calculate the mean of a given set of data.

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Mean, Median, Mode and Range

Difficulty level:

### QUESTION 1 of 10

There are several different types of averages.

An average is one number that represents a set of numbers.

The MEAN  is a  number, which we calculate by adding up all the numbers in the list and sharing this total out by how many there are.

Example

Find the MEAN of this set of ten numbers:    5,  4,  8,  4,  3,  3,  8,  5,  1,  6

Step 1     Find the total which is 47

Step 2     Now divide by the number of numbers, which is 10 to get 47 ÷ 10 = 4.7

The MEAN is 4.7

Work out the MEAN of this list of 7 numbers:

5,  8,  7,  7,  3,  5,  7,

Work out the MEAN of this list of shoe sizes, taken from children in a football team:

8,  8,  7,  7,  6,  5,  8,  7,  6,  8,  7

Work out the MEAN of this list of numbers:

15,  12,  7,  17,  23,  15,  14,  17

Work out the MEAN of this list of numbers:

15,  1200,  85,  1700

Work out the MEAN of this list of numbers:

5,  5,  5,  5,  5,  5,  5,  5

Work out the MEAN value of this list of shoe sizes, taken from children in a hockey team:

5½,  8,  6,  7½,  6,  5,  6,  5,  6,  8,  3

Work out the MEAN of this list of numbers:

5,  5,  5,  5,  100

Work out the MEAN of this list of numbers:

5,  -5,  -7,  7

The maximum daytime temperatures in ºC on 10 British summer days were as follows.

Work out the MEAN temperature in ºC (just write the number)

18,  17,  19,  18,  20,  15,  17,  18,  16,  15

The maximum daytime temperatures in ºC on 10 Italian summer days were as follows.

Work out the MEAN temperature in ºC (just write the number)

32,  27,  32,  35,  34,  33,  36,  35,  30,  35

• Question 1

Work out the MEAN of this list of 7 numbers:

5,  8,  7,  7,  3,  5,  7,

6
EDDIE SAYS
42 ÷ 7 = 6
• Question 2

Work out the MEAN of this list of shoe sizes, taken from children in a football team:

8,  8,  7,  7,  6,  5,  8,  7,  6,  8,  7

7
• Question 3

Work out the MEAN of this list of numbers:

15,  12,  7,  17,  23,  15,  14,  17

15
• Question 4

Work out the MEAN of this list of numbers:

15,  1200,  85,  1700

750
• Question 5

Work out the MEAN of this list of numbers:

5,  5,  5,  5,  5,  5,  5,  5

5
• Question 6

Work out the MEAN value of this list of shoe sizes, taken from children in a hockey team:

5½,  8,  6,  7½,  6,  5,  6,  5,  6,  8,  3

6
• Question 7

Work out the MEAN of this list of numbers:

5,  5,  5,  5,  100

24
• Question 8

Work out the MEAN of this list of numbers:

5,  -5,  -7,  7

0
• Question 9

The maximum daytime temperatures in ºC on 10 British summer days were as follows.

Work out the MEAN temperature in ºC (just write the number)

18,  17,  19,  18,  20,  15,  17,  18,  16,  15

17.3
• Question 10

The maximum daytime temperatures in ºC on 10 Italian summer days were as follows.

Work out the MEAN temperature in ºC (just write the number)

32,  27,  32,  35,  34,  33,  36,  35,  30,  35

32.9
---- OR ----

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