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Probability of an acme bulb

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Reference no: EM1313991

An average light bulb manufactured by the Acme Corporation lasts 300 days with a standard deviation of 50 days.

A. Assuming that bulb life is normally distributed, what is the probability that an Acme light bulb will last at most 100 days?

B. Jamie expects that a bulb will last for 400 to 500 days, what is the probability of an Acme bulb satisfying that?

Reference no: EM1313991

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