Then person 1 mea sured person 2’s head size, person 2 measured person 3’s head size, and so on, with person 10 fi nally measuring person 1’s head size.

Do you think that the resulting head size measurements would be more variable, less variable, or show about the same amount of variability as a set of 10 mea surements resulting from a single individual mea suring the head size of all 10 people in the group?

Explain.