Mathematics, 14.06.2021 15:30, anthonybowie99

The expected (mean) life of a particular type of light bulb is 1000 hours with a standard deviation of 50 hours. The life of this world is normally distributed what is the probability that a randomly selected bulb would last fewer than 940 hours?

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The expected (mean) life of a particular type of light bulb is 1000 hours with a standard deviation...