A part of a promotion, students who participate in a survey are mailed a free pass for one of three activities: movies, roller skating, or bowling. Participants have an equal chance of receiving each type of pass. If 900 students participate, how many would be expected to receive a pass for roller skating?

Question

A. 2/3
B. 600
C. 450
D. 300

Answer 1

D. 300

There are three activities, so the expected number of students receiving a roller skating pass would be 1/3 of the total participants.

1/3 x 900 = 300 students expected to receive a roller skating pass.