Question 488253: A cookie jar contains 3 peanut butter cookies, 5 chocolate chip cookies, and 2 snickerdoodle cookies. If Candice randomly chooses one cookie and eats it, then chooses a second cookie and its it . What is the probability she will choose and eat 2 peanut butter cookies?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A cookie jar contains 3 peanut butter cookies, 5 chocolate chip cookies, and 2 snickerdoodle cookies. If Candice randomly chooses one cookie and eats it, then chooses a second cookie and eats it . What is the probability she will choose and eat 2 peanut butter cookies?
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P(pb and pb)
= P(pb)*P(pb|pb)
= (3/10)(2/9)
= (1/5)(1/3)
= 1/15
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Cheers,
Stan H.
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