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The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of 15 minutes and
The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of 15 minutes and a standard deviation of 2 minutes. What is the probability that a product is assembled in between 15 and 21 minutes.
a.0.8755
b.0.5013
c.0.4987
d.0.1245
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