Homework Answers
a) P(defective and vendor B) = 0.30 x 0.0002
= 0.00006
b) P(defective nail) = P(defective and vendor A) + P(defective and vendor B) + P(defective and vendor C)
= 0.2x0.0005 + 0.3x0.0002 + 0.5x0.0001
= 0.00021
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