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A company produces steel rods. The lengths of the steel rods are normally distributed with a...

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Statistics

A company produces steel rods. The lengths of the steel rods arenormally distributed with a mean of 119.7-cm and a standarddeviation of 2-cm. For shipment, 30 steel rods are bundledtogether.

Find the probability that the average length of a randomly selectedbundle of steel rods is less than 119.8-cm.
P(M < 119.8-cm) =

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