Question

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 190.4-cm and a standard deviation of 1.9-cm. For shipment, 16 steel rods are bundled together.

Find the probability that the average length of a randomly selected bundle of steel rods is less than 190.2-cm.
P(M < 190.2-cm) = ___________

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