10
RCMultiple Choice
Box Plots — Cumulative exam
Question 10 • Concepts in Probability and Statistics A
A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Two marbles are drawn from the bag.Which expression represents the probability that one of the marbles is red and the other is blue?
Answer
A
StartFraction 30 P 2 Over 50 P 2 EndFraction
B
StartFraction 30 C 2 Over 50 C 2 EndFraction
C
StartFraction (10 C 1) (20 C 1) Over 50 C 2 EndFraction
D
StartFraction (10 P 1) (20 P 1) Over 50 P 2 EndFraction