SOLUTION: In a batch of 2000 calculators, there are on average, 8 defective ones. If a random sample of 150 is selected, find the probility of 5 defective ones

Question 793086: In a batch of 2000 calculators, there are on average, 8 defective ones. If a random sample of 150 is selected, find the probility of 5 defective ones
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
In a batch of 2000 calculators, there are on average, 8 defective ones. If a random sample of 150 is selected, find the probability of 5 defective ones.
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Binomial Problem with n = 150 ; p(defective) = 8/2000 = 0.004
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P(x = 5) = 150C5*0.004^5*0.996^145 = binompdf(150,0.004,5) = 0.000339.
Cheers,
Stan H.

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