Mathematics, 30.04.2021 18:30, Leigh8655

The mean lifespan of a light bulb manufactured by a company is 400 days with a standard deviation of 23 days. Assuming that the light bulb's lifespan is a normally distributed random variable, what is the probability that a light bulb manufactured by this company will last at most 350 days? a)

0.015

b)

0.985

c)

0.083

d)

0.150

Answers: 1

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The mean lifespan of a light bulb manufactured by a company is 400 days with a standard deviation of...