any produces steel rods. The lengths of the steel rods are normally distributed with a mean of m and a standard deviation of 2.1-cm. For shipment, 18 steel rods are bundled together. Round all s to four decimal places if necessary. Vhat is the distribution of X? X - N( Vhat is the distribution of ? ¤ - N( or a single randomly selected steel rod, find the probability that the length is between 189.1-cm nd 189.6-cm. or a bundled of 18 rods, find the probability that the average length is between 189.1-cm and 89.6-cm.

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