AVERAGES

Mean

100

Find the mean of:

3  4  5  6  7

5

200

Find the mean of:

3  8  9  18  22

12

300

Find the mean of:

12  18  93  34  23

36

400

Find the mean of:

3.2  7.5  6.2  8.1

6.25

500

Find the mean of:

3.5  2.4  6.3  3.8  7.2  8.5  2.1  9.4  8.7  0.2  8.4

5.5

Median

100

Find the median of:

3, 6, 8, 19, 20

8

200

Find the median of:

2, 3, 5, 6, 8, 10

5,5

300

Find the median of:

2, 7, 2, 8, 4, 6, 9

6

400

Find the median of:

25, 36, 84, 12, 34, 47, 73

36

500

Find the median of:

3, 25, 72, 12, 33, 74

29

Mode

100

Find the mode of:

3, 3, 3, 7, 8, 9

3

200

Find the mode of:

3, 3, 5, 5, 7, 8, 9

3 and 5

300

Find the mode of:

2, 2, 5, 5, 6, 2, 7, 3, 4, 6

2

400

5, 2, 7, 8, 4

No mode

500

Find the mode of:

4, 2, 7, 4, 2, 2, 7, 7, 4, 2, 4, 7

No mode

Range

100

Find the range of:

5, 3, 7, 2, 7

5

200

Find the range of:

6, 2, 7, 2, 8, 2, 6

6

300

Find the range of:

23, 33, 7, 2, 3, 7, 34

32

400

Find the range of:

52, 36, 74, 23, 73, 46

50

500

Find the range of:

2,3   6,3   7,2   10,2   4,2

7,9

Definitions

100

To work out the range you do:

__________________________________

Biggest - Smallest

200

The mode is the number that:

___________________________

Appears most often

300

To find the median, we do two things:

1.___________________________

2.___________________________

1. Put the numbers in order

2. Cross off from both sides to find the middle number

400

To find the mean we do two things:

1.__________________________

2.__________________________

1. Add up all the numbers

2. Divide by the amount of numbers

500

If there are an even number of numbers, we find the median by:

_____________________________

Finding the number in the middle of the two numbers in the middle.