SOLUTION: A box contains 74 brass washers, 86 steel washers and 40 aluminum washers, Three washers are drawn at random from the box without replacement. Determine the probability that all th
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Question 311699: A box contains 74 brass washers, 86 steel washers and 40 aluminum washers, Three washers are drawn at random from the box without replacement. Determine the probability that all three are steel washers Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A box contains 74 brass washers, 86 steel washers and 40 aluminum washers, Three washers are drawn at random from the box without replacement. Determine the probability that all three are steel washers
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# of ways to pick 3 steel washers : 86C3 = 102340
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# of ways to pick 3 randomly: 200C3 = 1313400
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P(pick 3 steel washers) = 86C3/200C3 = 0.0779
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Cheers,
Stan H.
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