The capacity of an elevator is 12 people or 1896 pounds. The capacity will be exceeded if the 12 people have weights with mean greater than 1896 / 12 = 158 pounds. Suppose the people have weights that are normally distributed with a mean of 161 lb and a standard deviation of 30 lb.

Thank you for the opportunity to help you with your question!

Find the probability that if a person is randomly selected, his weight will be greater than...greater than what? I can't answer this question without knowing "greater than what?"

Please let me know if you need any clarification. I'm always happy to answer your questions.