Mathematics, 17.12.2020 08:10 makeithappen60
U. CULLULU UCLICU 27. The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a standard deviation of 60 hours. What is the probability that a randomly chosen board will last at most 2,560 hours? a. 0.8413 b. 0.1587 C. 0.3461 d. 0.6539
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U. CULLULU UCLICU 27. The lifetime of a computer circuit board is normally distributed with a mean o...
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