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? (1 point)
A. 2/3
B. 600
C. 450
D. 300
B. 600
Since students have an equal chance of receiving each type of pass, we can expect 1/3 of the 900 participants to receive a pass for roller skating.
1/3 * 900 = 300
Therefore, we can expect 300 students to receive a pass for roller skating.