Asked by sarah
six out of every 400 cans of paint are found to be defective. If you buy four cans of paint,what is the probability that one can will be defective.
Answers
Answered by
Reiny
prob of defect = 6/400 = 3/200
so prob that 1 out of 4 cans is defective
= C(4,1) (3/200)^ (197/200)^3 = appr .057
so prob that 1 out of 4 cans is defective
= C(4,1) (3/200)^ (197/200)^3 = appr .057
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