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There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. Barbara selects 2 ice creams at random without replacement. What is the probability that she selects 2 chocolate
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May 6, 2018
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There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. Barbara selects 2 ice creams at random without replacement. What is the probability that she selects 2 chocolate ice creams?
Mathematics
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3 strawberry, 4 chocolate, 7 vanilla...total of 14
probability of 1st pick being chocolate = 4/14 reduces to 2/7
without replacing
probability of 2nd pick being chocolate = 3/13
probability of both = 2/7 * 3/13 = 6/91 <==
BatScream
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May 10, 2018
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