Twenty-five percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection. (Round your answers to three decimal places.) a) Among 15 randomly selected cars, what is the probability that at most 5 fail the inspection? b) Among 15 randomly selected cars, what is the probability that between 5 and 10 (inclusive) fail to pass inspection? c) Among 25 randomly selected cars, what is the mean value of the number that pass inspection? d) Among 25 randomly selected cars, what is the standard deviation of the number that pass inspection? e) What is the probability that among 25 randomly selected cars, the number that pass is within 1 standard deviation of the mean value?
Twenty-five percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection. (Round your answers to three decimal places.) a) Among 15 randomly selected cars, what is the probability that at most 5 fail the inspection? b) Among 15 randomly selected cars, what is the probability that between 5 and 10 (inclusive) fail to pass inspection? c) Among 25 randomly selected cars, what is the mean value of the number that pass inspection? d) Among 25 randomly selected cars, what is the standard deviation of the number that pass inspection? e) What is the probability that among 25 randomly selected cars, the number that pass is within 1 standard deviation of the mean value?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Twenty-five percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection. (Round your answers to three decimal places.)
a) Among 15 randomly selected cars, what is the probability that at most 5 fail the inspection?
b) Among 15 randomly selected cars, what is the probability that between 5 and 10 (inclusive) fail to pass inspection?
c) Among 25 randomly selected cars, what is the mean value of the number that pass inspection?
d) Among 25 randomly selected cars, what is the standard deviation of the number that pass inspection?
e) What is the probability that among 25 randomly selected cars, the number that pass is within 1 standard deviation of the mean value?
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