9. The weight of items produced by a machine is normally distributed with a mean of 8 kg and a standard deviation of 2 kg What is the probability that a randomly selected item will weigh less than 10...

9. The weight of items produced by a machine is normally distributed with a mean of 8 kg and a standard deviation of 2 kg What is the probability that a randomly selected item will weigh less than 10 kg? A. 0.8413 B. None C. 0.1587 D. 0.500 E. 0.3413