hadynbabineaux8659 hadynbabineaux8659

15-03-2024
Mathematics

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A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7 years, and a standard deviation of 0.8 years. If you randomly purchase one item, what is the probability that it will last between 6 and 8 years?
a) 0.6827
b) 0.8413
c) 0.9545
d) 0.9973

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