Question

The weight of a sophisticated running shoe is normally distributed with a mean of 12 ounces
and a standard deviation of 0.5 ounces.
a. What is the probability that a shoe weighs more than 13 ounces?
b. What must the standard deviation of weight be in order for the company to state that 99.9%
of its shoes are less than 13 ounces?

Answer 1

Answer:

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Step-by-step explanation:

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