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Normally distributed with a mean

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Reference no: EM132116822

CD players are normally distributed with a mean of 7.1 years and a standard deviation of 1.4 years

(a) Find the probability that a randomly selected CD player will have a replacement time of less than 8.0 years.

(b) Find the probability that a randomly selected CD player will have a replacement time of more than 9.0 years.

(c) Find the probability that a randomly selected CD player will have a replacement time between 5 and 8 years.

Reference no: EM132116822

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