Highways -car speed X~N(60 ml/h, 5ml/h)
That is, the car speed on highway is normally distributed with meanof 60 mph, and standard deviationof 5 mph.
If police tickets the top 5%, at what speed you expect to get a ticket?
Please see the attached file for detailed solution.
Therefore, speed above 68.22 miles per hour would be …
The solution shows how to find out the speed at which you expect to get a ticket on highway.