jasalina
jasalina
18.07.2021 • 
Mathematics

. A construction zone on a highway has a posted speed limit of 40 miles per hour. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 46 mph and a standard deviation of 4 mph. (around your answer to 2 decimal places) b) If the police wish to ticket only those drivers whose speed falls in the upper 20th percent, what is the minimum speed of a driver that will be ticketed?

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