Date 6.3 Probability using the Normal Distribution Extra Practice Sketch a drawing for each problem. Label and shade the appropriate area Be sure to show all work for each problem 1. A line up for tickets to a local concert had an average waiting time of 20 minutes with a standard deviation of 4 minutes. A) What percentage of the people in line waited for more than 28 minutes? B) If 2000 ticket buyers were in line, how many of them would expect to wait for less than 16 minutes? 2. The speeds of cars on the highway have a mean of 65 mph with a standard deviation of 5 mph. A) What percentage of cars averaged less than 62 mph? B) If a police car stopped cars that were going more than 80 mph, how many cars would they stop if there were 8000 cars on the highway