11134 '3' - ( Ch_7_Print_HW_Norma|_Distributio... @ Chapter 7 PRINT HW Normal Distributions Name :l 1. Find the area under the standard normal curve a. to the le of. b. between and c. between and 2. A construction zone on Interstate 15 has a speed limit of 40 mph. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 44 mph and a standard deviation of 3 mph, a. Find the percentage of vehicles who pass through this construction zone who are exceeding the posted speed limit. b. What percentage of vehicles travel through this construction zone with speeds between 50 mph and 55 mph? 3. Let be a continuous random variable with an approximately normal distribution with a mean of 325 and a standard deviation of 40. a. Find the value of so that the area to the le of is 0.0847. b. Find the value of so that the area to the right of is 0.1224. co I'Q E Dashboard Calendar To Do Notifications In box