SOLUTION: A shipment contains 100 items, 20 of which are defective. You randomly select 10 items and test them. What are the chances that you will find at least one of the defective items in

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Question 923304: A shipment contains 100 items, 20 of which are defective. You randomly select 10 items and test them. What are the chances that you will find at least one of the defective items in your sample?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(def) = 20/100 = .2, n = 10
P(at least one) = 1 - P(none) = 1-(.8)^10