PDM5-13: The Mean

Move enough blocks so that all stacks have the same number of blocks in each stack. The mean is the number of blocks in each stack. a) Mean: ___

• Mean: 5

• Mean: 3

• Mean: 7

• Mean: 4

Move enough blocks so that all stacks have the same number of blocks in each stack. The mean is the number of blocks in each stack. b) Mean: ___

• Mean: 5

• Mean: 10

• Mean: 15

• Mean: 20

Move enough blocks so that all stacks have the same number of blocks in each stack. The mean is the number of blocks in each stack. c) Mean: ___

• Mean: 5

• Mean: 3

• Mean: 7

• Mean: 4

Shade the number of blocks given. Move blocks to find the mean. (Show your work with a different shading.) a) Mean: ___

• Mean: 5

• Mean: 10

• Mean: 15

• Mean: 20

Shade the number of blocks given. Move blocks to find the mean. (Show your work with a different shading.) b) Mean: ___

• Mean: 5

• Mean: 10

• Mean: 15

• Mean: 20

Shade the number of blocks given. Move blocks to find the mean. (Show your work with a different shading.) c) Mean: ___

• Mean: 5

• Mean: 10

• Mean: 15

• Mean: 20

Find the mean without using blocks. a) (i) 0, 2, 5, 6, 7. Sum of data values: ___, Number of data values: ___, Mean: ___

• Mean = (0 + 2 + 5 + 6 + 7) / 5 = 20 / 5 = 4

• Mean = (0 + 2 + 5 + 6 + 7) / 5 = 25 / 5 = 5

• Mean = (0 + 2 + 5 + 6 + 7) / 5 = 18 / 5 = 3.6

• Mean = (0 + 2 + 5 + 6 + 7) / 5 = 22 / 5 = 4.4

Find the mean without using blocks. a) (ii) 1, 3, 6, 7, 8. Sum of data values: ___, Number of data values: ___, Mean: ___

• Mean = (1 + 3 + 6 + 7 + 8) / 5 = 25 / 5 = 5

• Mean = (1 + 3 + 6 + 7 + 8) / 4 = 25 / 4 = 6.25

• Mean = (1 + 3 + 6 + 7 + 8) / 6 = 25 / 6 = 4.17

• Mean = (1 + 3 + 6 + 7 + 8) / 3 = 25 / 3 = 8.33

Find the mean without using blocks. a) (iii) 2, 4, 7, 8, 9. Sum of data values: ___, Number of data values: ___, Mean: ___

• Sum of data values: 30, Number of data values: 5, Mean: 6

• Sum of data values: 28, Number of data values: 5, Mean: 5.6

• Sum of data values: 32, Number of data values: 5, Mean: 6.4

• Sum of data values: 29, Number of data values: 5, Mean: 5.8

Find the mean without using blocks. a) (iv) 3, 5, 8, 9, 10. Sum of data values: ___, Number of data values: ___, Mean: ___

• Sum of data values: 35, Number of data values: 5, Mean: 7

• Sum of data values: 36, Number of data values: 5, Mean: 7.2

• Sum of data values: 34, Number of data values: 5, Mean: 6.8

• Sum of data values: 33, Number of data values: 5, Mean: 6.6