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Suppose a brand of light bulbs is normally? distributed, with a mean life of 1700hr and a standard deviation of 100 hr
Suppose a brand of light bulbs is normally? distributed, with a mean life of 1700hr and a standard deviation of 100 hr.
Find the probability that a light bulb of that brand lasts between 1590hr and 1860hr.
Expert Solution
Answer : P(E) = 0.8095
PFA
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