Question 452498
The probability that a randomly chosen weld will pass inspection is 0.90.
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Binomial Problems with n = 15 and P(pass) = 0.9 and P(not pass) = 0.1
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a)If an inspector checks 15 welds, what is the probability that exactly 14 will pass.
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P(x = 14) = 15C14(0.9)^14*(0.1) = 0.3432
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b)What is the probability that at least 14 will pass.
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P(14<= x <=15) = 1-P(0<= x <=13) = 0.5490
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Cheers,
Stan H.
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