The amount of time necessary for assembly line workers to complete a product is a normal variable with a mean of 15 minutes and a standard deviation of 2 minutes.The probability is
that a product is assembled in between 15 and 21 minutes.

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The Answer of The amount of time necessary for assembly line workers to complete a product is a normal variable with a mean of 15 minutes and a standard deviation of 2 minutes.The probability is
that a product is assembled in between 15 and 21 minutes.

The Amount of Time Necessary for Assembly Line Workers to Complete