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Company XYZ know that replacement times for the portable MP3 players it produces are normally distributed with a mean of 2.7 years and a standard

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Company XYZ know that replacement times for the portable MP3 players it produces are normally distributed with a mean of 2.7 years and a standard deviation of 0.7 years. Find the probability that a randomly selected portable MP3 player will have a replacement time less than 1.3 years? P(X Next

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