SOLUTION: A batch of 100 calculators contains 5 defective calculators. If 6 calculators are selected at random from this batch, determine the probability that exactly two of those selected a
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Question 349667: A batch of 100 calculators contains 5 defective calculators. If 6 calculators are selected at random from this batch, determine the probability that exactly two of those selected are defective. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A batch of 100 calculators contains 5 defective calculators. If 6 calculators are selected at random from this batch, determine the probability that exactly two of those selected are defective.
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P(defective) = 5/100 = 0.05
P(not defective) = 0.95
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P(x=2) = 6C2(0.05)^2*(0.95)4 = binompdf(6,0.05,2) = 0.0305
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Cheers,
stan H.
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