Asked by Leslie
Find the requested probability.
A box contains the following mixture of colored marbles: 2 black, 1 red, 4 yellow, and 2 green. If two marbles are drawn, the second being drawn after the first is replaced, then what is the probability that both are yellow?
A box contains the following mixture of colored marbles: 2 black, 1 red, 4 yellow, and 2 green. If two marbles are drawn, the second being drawn after the first is replaced, then what is the probability that both are yellow?
Answers
Answered by
Leslie
Hi i was wondering if someone could help me
Answered by
R_scott
there are 9 marbles , with 4 being yellow
the probability of drawing a yellow is ... 4 / 9
the two drawings are independent events
... the 1st drawing doesn't affect the 2nd
the probability of two yellows is the product of the individual drawings
p(2 y) = 4/9 * 4/9
the probability of drawing a yellow is ... 4 / 9
the two drawings are independent events
... the 1st drawing doesn't affect the 2nd
the probability of two yellows is the product of the individual drawings
p(2 y) = 4/9 * 4/9
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