Math 133: 7.2 Worksheet #4 7.2: Applications of the Normal Distribution Normal Z Score Curve 1. Suppose X has a normal distribution with u J = 200 and = 15. Find the following: (For each part - Shade and label appropriately; Give 4 decimal places and P(X) notation from StatCrunch, circling the answer) a. The X-value that corresponds to the 3rd quartile b. Percentile rank of X = 181 Roun c. P(X < 169 or X 204) 169 200 204 d. The score that cuts off the top 7% e. The symmetric X-values shown below: f. The area shown in the graph: 160 180 0.63 X1 200 220 X22 240 160 180 200 195 area 220 P