SOLUTION: Please help: Five silver coins and eight gold coins are in a purse. Four coins are to be selected at random, without replacement. Determine the probability that two silver and t

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Question 1101161: Please help:
Five silver coins and eight gold coins are in a purse. Four coins are to be selected at random, without replacement. Determine the probability that two silver and two gold coins are selected.

Answer by rothauserc(4718)   (Show Source): You can put this solution on YOUR website!
there are 13 coins in the purse
:
the probability of selecting two silver coins is 5/13 * 4/12 = 0.1282
the probability of selecting two gold coins is 8/11 * 7/10 = 0.5091
:
the probability of selecting two silver and two gold coins without replacement is 0.1282 * 0.5091 = 0.0653
:

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