Facebook and age Is there a relationship between Facebook use and age among college students? The following two-way table displays data for the 219 students who responded to the survey.50 Age Facebook user?

Younger

(18–22)

Middle

(23–27)

Older

(28 and up)

Yes 78 49 21 No 4 21 46

(a) What percent of the students who responded were Facebook users? Is this percent part of a marginal distribution or a conditional distribution? Explain.

(b) What percent of the younger students in the sample were Facebook users? What percent of the Facebook users in the sample were younger students?