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Mathematics, 19.09.2019 23:30, senituliii
Arecent study of the lifetimes of cell phones found the average is 24.3 months. the standard deviation is 2.6 months. if a company provides its 33 employees with a cell phone, find the probability that the mean lifetime of these phones will be less than 23.8. assume cell phone life is normally distributed variable.
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Arecent study of the lifetimes of cell phones found the average is 24.3 months. the standard deviati...
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