Mathematics, 05.05.2020 02:47 abigailweeks10

A company selling light bulbs claims in its advertisements that its light bulbs’ average life is 1000 hours. In fact, the life span of these light bulbs is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours. Find the probability that a randomly chosen light bulb will last less than 900 hours.

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A company selling light bulbs claims in its advertisements that its light bulbs’ average life is 100...

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