Mathematics, 04.02.2020 10:44 talanna394
The life expectancy of a lightbulb is normally distributed with a mean of 1975 hours and a standard deviation of 25 hours what is the probability that a lightbulb last between 1 950 and 2050 hours
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The life expectancy of a lightbulb is normally distributed with a mean of 1975 hours and a standard...
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