Question

For which data set is the mean most likely to be misleading?

A data set shows the number of letters in various mailboxes: 5, 6, 6, 7, 8, 8, 9, 9, 9, 9

A data set shows the number of letters in various mailboxes: 2, 5, 6, 7, 9, 8, 9, 9, ten, ten

A data set shows the number of letters in various mailboxes: 5, 5, 5, 5, 5, 5, 5, 5, 5, 5

A data set shows the number of letters in various mailboxes: 2, 3, 4, 5, 5, 5, 5, 8, twenty-seven, forty-five