SOLUTION: Assume that you have 12 mice in the cage: 5 white males, 3 gray females, and 4 gray males. Two mice are selected simultaneously and at random, and their colors are noted.

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Question 246623: Assume that you have
12 mice in the cage: 5 white males,
3 gray females, and 4 gray males. Two mice are selected simultaneously
and at random, and their colors are noted.

What is the probability that at least one mouse is female, given that
exactly one is gray?

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Since exactly one is gray then one is white.
Only one can be female, the gray one.
3/7 probability that at least one is female.
.
Ed