Question: 9) A machine makes iron rods that are supposed to be 50 inches long. It is known that probability distribution of rods made on this

9) A machine makes iron rods that are supposed to be 50 inches long. It is known that probability distribution of rods made on this machine is normal with mean of 50 inches and standard deviation of .06 inches. The rods that are either shorter than 49.85 inches or longer than 50.15 inches are discarded. What percentage of rods is discarded

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