Use the TI-84 Plus calculator to find the z-score for which the area to its left is 0.12. Round the answer to two decimal places. The z-score for the given area is Use the TI-84 Plus calculator to find the z-score for which the area to its right is 0.41. Round the answer to two decimal places. The z-score for the given area is I Watch your cholesterol: The mean serum cholesterol level for U.S. adults was 203, with a standard deviation of 42 (the units are milligrams per deciliter). A simple random sample of 109 adults is chosen. Use the TI-84 calculator. Round the answers to four decimal places. Part 1 of 3 What is the probability that the sample mean cholesterol level is greater than 213? The probability that the sample mean cholesterol level is greater than 213 is 0.0065 Part 2 of 3 What is the probability that the sample mean cholesterol level is between 191 and 201? The probability that the sample mean cholesterol level is between 191 and 201 is Part 3 of 3 Would it be unusual for the sample mean to be less than 191? It would be unusual for the sample mean to be less than 191, since the probability is 0.0014