PDM4-14: The Mean

Move one block so that all stacks have the same number of blocks. Example: [Diagram] a) [Diagram]

• The question has a diagram associated with it. The diagram has been stored separately.

• Move two blocks to achieve the same number of blocks in each stack.

• No blocks need to be moved to achieve equal stacks.

• Move three blocks to achieve the same number of blocks in each stack.

Move one block so that all stacks have the same number of blocks. Example: [Diagram] b) [Diagram]

• The question has a diagram associated with it. The diagram has been stored separately.

• Move two blocks to achieve the same number of blocks in each stack.

• No blocks need to be moved as all stacks already have the same number of blocks.

• Move three blocks to achieve the same number of blocks in each stack.

Move one block so that all stacks have the same number of blocks. Example: [Diagram] c) [Diagram]

• The question has a diagram associated with it. The diagram has been stored separately.

• Move two blocks to achieve the same number of blocks in each stack.

• No blocks need to be moved as all stacks already have the same number of blocks.

• Move three blocks to achieve the same number of blocks in each stack.

Move enough blocks so that all stacks have the same number of blocks. The mean is the number of blocks in each stack. a) [Diagram] 4 2 2 3 4 Mean: ____

• Mean: 3

• Mean: 2

• Mean: 4

• Mean: 5

Move enough blocks so that all stacks have the same number of blocks. The mean is the number of blocks in each stack. b) [Diagram] 2 3 4 4 2 Mean: ____

• Mean: 3

• Mean: 4

• Mean: 2

• Mean: 5

Move enough blocks so that all stacks have the same number of blocks. The mean is the number of blocks in each stack. c) [Diagram] 1 6 7 6 Mean: ____

• Mean: 5

• Mean: 4

• Mean: 6

• Mean: 7

Find the mean by drawing stacks and then moving blocks. a) [Diagram] 1 5 4 2 Mean: ____

• Mean: 3

• Mean: 4

• Mean: 2

• Mean: 5

Find the mean by drawing stacks and then moving blocks. b) [Diagram] 3 8 4 4 6 Mean: ____

• Mean: 5

• Mean: 6

• Mean: 4

• Mean: 7

Find the mean by drawing stacks and then moving blocks. c) [Diagram] 1 1 1 1 7 Mean: ____

• Mean: 2

• Mean: 3

• Mean: 4

• Mean: 5

Find the mean without using blocks. a) 1, 3, 7, 4, 5. Sum of data values = ____. Number of data values = ____. Mean = ____.

• Sum of data values = 20. Number of data values = 5. Mean = 4.

• Sum of data values = 21. Number of data values = 5. Mean = 4.2.

• Sum of data values = 19. Number of data values = 5. Mean = 3.8.

• Sum of data values = 22. Number of data values = 5. Mean = 4.4.