Question

Complete the data set with one value so that the mean of the data is 7.

12, 6, 4, 8, 10,
Which value can you remove from the new set of data so that the mean is 8?

Answer 1

to get a mean of 7 you would have to add the number 2 and to get a mean of 8 you would remove the number 2

Answer 2

Add 2
Remove 8.........