Undergoing an emissions inspection

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Reference no: EM131010439

Thirty percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection.

a. Among 15 randomly selected cars, what is the prob- ability that at most five fail the inspection?

b. Among 15 randomly selected cars, what is the prob- ability that between five and 10 (inclusive) fail to pass inspection?

c. Among 25 randomly selected cars, what is the mean value of the number that pass inspection, and what is the standard deviation of the number that pass inspection?

d. What is the probability that among 25 randomly selected cars, the number that pass is within 1 stan- dard deviation of the mean value?

Reference no: EM131010439

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