AnswersConcepts in Probability and Statistics - MA3120 A-ICCompound Events and the Fundamental Counting PrincipleQuestion 7
7
QuizMultiple Choice
Compound Events and the Fundamental Counting Principle
Question 7 • Concepts in Probability and Statistics - MA3120 A-IC
There are four blue marbles, an unknown number of red (r) marbles, and six yellow marbles in a bag. Which expression represents the probability of randomly selecting a blue marble, replacing it, and then randomly selecting a red marble?
Answer
A
StartFraction 4 over 10 EndFraction (StartFraction r over 10 EndFraction)
B
StartFraction 4 over 10 r EndFraction (StartFraction 4 over 10 r EndFraction)
C
StartFraction 4 over 10 + r EndFraction (StartFraction r over 10 + r EndFraction)
D
StartFraction 4 over 10 r EndFraction (StartFraction r over 10 r EndFraction)