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business statistics The active lifetime of laptop computers is normally distributed, with a mean of 36 months and a standard deviation of 6 months. a.

business statistics

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The active lifetime of laptop computers is normally distributed, with a mean of 36 months and a standard deviation of 6 months. a. What is the probability that a randomly selected laptop will last less than 3.5 years? b. What proportion of the laptops will last more than 32 months? c. What proportion of the laptops will last between 2 and 4 years

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