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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