Question 163995: Ten T shirt are in a drawrer. Five are white, two are blue, two are yellow, and one is red. You pick one shirt at random and replace it. After taking a shower you again randomly pick a shirt. What is the probability that you chose a white shirt both times?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Ten T shirt are in a drawer. Five are white, two are blue, two are yellow, and one is red. You pick one shirt at random and replace it. After taking a shower you again randomly pick a shirt. What is the probability that you chose a white shirt both times?
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Since you replaced the first pick, the picks are independent.
P(W and W) = P(W)*P(W)
= (5/10)^2 = 1/4
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Cheers,
Stan H.
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