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August 23, 2014

Homework Help: Statistics

Posted by Meghan on Wednesday, September 21, 2011 at 3:02pm.

An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent are independently and normally distributed with a mean of 120 cm and a standard deviation of 4.7 cm.

Find the probability that if 3 are randomly selected, all 3 have lengths that exceed 122 cm.

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