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JackieLe
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The qualitycontrol inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of nine syringes taken from the batch. Suppose the batch contains 5% defective syringes.
What is the probability that the batch will be accepted? (Round your answer to three decimal places.)
 one year ago
 one year ago
JackieLe Group Title
The qualitycontrol inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of nine syringes taken from the batch. Suppose the batch contains 5% defective syringes. What is the probability that the batch will be accepted? (Round your answer to three decimal places.)
 one year ago
 one year ago

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wio Group TitleBest ResponseYou've already chosen the best response.1
So we want to find:\[ \Pr(X\lt 2) = \Pr(X=0)+\Pr(X=1) \]
 one year ago

wio Group TitleBest ResponseYou've already chosen the best response.1
\[\large \Pr(X=0) = \binom{9}{0}(10.05)^9(0.05)^0 =(10.05)^9 \]\[\large \Pr(X=1) =\binom{9}{1} (10.05)^8(0.05)^1 =9 (10.05)^8(0.05)^1 \]
 one year ago
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