Grade 6 Statistics: Finding the Mean

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   Find the mean of: 1, 7, 13, 15, 17

   1. Add all the numbers: 1 + 7 + 13 + 15 + 17 = 53.
   2. There are 5 numbers, so divide the total by 5: 53 ÷ 5 = 10.6.
   3. So the mean is 10.6.

   Answer: 10.6

2. Example 2

   Find the mean of: 7, 9, 10, 11, 13

   1. Add all the numbers: 7 + 9 + 10 + 11 + 13 = 50.
   2. There are 5 numbers, so divide the total by 5: 50 ÷ 5 = 10.
   3. So the mean is 10.

   Answer: 10

3. Example 3

   Find the mean of: 8, 14, 16, 17, 17

   1. Add all the numbers: 8 + 14 + 16 + 17 + 17 = 72.
   2. There are 5 numbers, so divide the total by 5: 72 ÷ 5 = 14.4.
   3. So the mean is 14.4.

   Answer: 14.4