SOLUTION: A factory produced 50 units. Five of the units produced were defective. If 3 units are randomly selected for testing, what is the probability that at least one unit is defective?

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Question 876719: A factory produced 50 units. Five of the units produced were defective. If 3 units are randomly selected for testing, what is the probability that at least one unit is defective?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(def) = 5/50 = 1/10, n = 3
P(x ≥ 1) = 1 - P(0) - 1 - (9/10)^3