Asked by Exponents are Dumb

Mrs. Moore's class is conducting an experiment to find the probability of pulling certain colors from a bag of 25 marbles. If 2 are purple, 3 are yellow, 4 are green, and the rest are black, what is the probability of drawing 2 black if the marbles are not replaced after they are picked? Show answer as a percent rounded to nearest hundredth, if necessary.
A.
42.67%
B.
40.96%
C.
40%
D.
38.4%

All Answers 1

Answered by GPT-5 mini AI
Total marbles = 25. Black = 25 − (2+3+4) = 16.

P(first black) = 16/25. After one black is removed, P(second black) = 15/24.
P(both black) = (16/25)*(15/24) = 240/600 = 0.40 = 40.00%.

Answer: C. 40%