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Probability- Binomial distribution

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A bin contains seven parts. The probability that any part in the bin is defective is 3.5E-3. If three parts are selected at random from the bin, what is the probability that exactly two are defective? Please explain equation used and steps to solve the problem.

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The solution calculates probability of finding defective parts using Binomial distribution.

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A bin contains seven parts. The probability that any part in the bin is defective is 3.5E-3.  If three parts are selected at random from the bin, what is the ...

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