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Replacement times for CD plater are nomally distrbuted with mean 7.1 years and standard deviation of 1.4years. a) fibd the probability that a randumly selected CD player will have a replacement time less than 8 years.b)If you want to provide a warranty so that only 2% of CD player will be replaced before the warranty expires, what is the tome length of the warranty? c) What is p67?

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Category:- Statistics and Probability
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