A population contains 200 articles of which 5% are defective. a) What is the probability that...
A population contains 200 articles of which 5% are defective.
a) What is the probability that a sample of 20 chosen without replacement has 3 defective articles？b) If the sample is chosen with replacement?
I need help with part a), and would please check my answer for part b) : 0.059
Thanks
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A population contains 200 articles of which 5% are
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