Do men and women treat male and female children differently

Do men and women treat male and female children differently? An observational study was conducted mear the primate exhibit at the San Diego Zoo on weekends in 1988. The data are from 39 groups of three- one adult female, one adult male, and one toddler- in which the toddler was being carried.

What is the proportion of all male toddlers that were carried by the male adult?

A) 0.32

B) 0.36

C) 0.64

D) 0.17

E) 0.57

Explain your answer and show work.

Solution

Total number of male toddlers carried by male adults = 8

Total number of male toddlers = 8+6=14

Proportion of all male toddlers that were carried by male adult = 8/14 =0.57