2) In an article about the cost of health care, Fuh-We Magazine reported that a visit to a hospital emergency room has a mean cost of $328. Assume that the cost for hospital emergency room visit is normally distributed with a population standard deviation of $92. a) What is the probability that the cost will be more than $512? (3 marks) b) What is the probability that the cost will be between $236 and $604? (5 marks) c) What is the probability that the cost will be less than $446? (2 marks) [10 marks]