A large lot of silicon wafers contains 60% of type A and 40%of type B wafers. Th

Question

A large lot of silicon wafers contains 60% of type A and 40%of type B wafers. Three wafers are selected without replacement.Which of the following numbers is closest to the probability thatall three wafers are of the same type? a)0.264 b)0.280 c)0.312 d)0.361 e)0.385 A large lot of silicon wafers contains 60% of type A and 40%of type B wafers. Three wafers are selected without replacement.Which of the following numbers is closest to the probability thatall three wafers are of the same type? a)0.264 b)0.280 c)0.312 d)0.361 e)0.385

Explanation / Answer

(.6)3 all of type b (.4)3all of type a All of type a or b= (.6)3+(.4)3=.28 ansberb

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