A bag contains 4 white, 3 blue, and 5 red marbles.
Find the probability of choosing 3 blue marbles in a row if the marbles are replaced.
A. two over eleven
B. one over two hundred twenty
C. Fraction 1 over 27 end fraction
D. one over sixty-four.
1 answer
The probability of choosing one blue marble on any given draw is 3/12 or 1/4. Since the marbles are replaced each time, the probability of choosing three blue marbles in a row is (1/4)^3 or 1/64. Therefore, the answer is D. one over sixty-four.