Question 671480: PLEASE HELP!!!!!
a pet store has seven puppies including 4 poodles, 2 terriers, and 1 retriever. If rebecka and aaron, in that order, each select one puppy at random, with replacement (they may both select the same one), find the probability that a) both select a poodle, b) rebecka selects a retriever and aaron selects a terrier, c) rebecka selects a terrier and aaron selects a retriever, and d) both select a retriever.
thank you!
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! a pet store has seven puppies including 4 poodles, 2 terriers, and 1 retriever. If rebecka and aaron, in that order, each select one puppy at random, with replacement (they may both select the same one),
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find the probability that
a) both select a poodle::: (4/7)^2
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b) rebecka selects a retriever and aaron selects a terrier
::: (1/7)(2/7) = 2/49
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c) rebecka selects a terrier and aaron selects a retriever
::: (2/7)(1/7) = 2/48
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d) both select a retriever::: (1/7)^2 = 1/49
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Cheers,
Stan H.
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