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Mathematics, 02.08.2019 16:10, millanesjamela
The life expectancy (in hours) of an electric bulb is normally distributed with a mean of 5000 and a standard deviation of 1000. find the probability that a bulb lasts for more than 6300 hours. round answer to four decimal places. (tip: calculate z-value and use z-probability distribution table.)
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Answers: 3
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