A company produce steel rods the length of steel rods are normally distributed with a mean of 104.3 cm and a standard deviation of 1.5 CM 4 shipment of 8 steel rods are bundled together find the proba

A company produce steel rods the length of steel rods are normally distributed with a mean of 104.3 cm and a standard deviation of 1.5 CM 4 shipment of 8 steel rods are bundled together find the probability that the average length of the randomly-selected bundles of rods is less than 105.5 cm