suppose that vehicle speeds at an interstate location have a normal distrubution with the mean equal to 112km/h and standard deviation equal to 12.9km/h. a. What is the the z score for a speed of 103 km/h ? b.suppose the speed limit of an interstate location is 120km/h. what is the probability that a vehicle is over speeding at an interstate location? c. In addition to (a) suppose a vehicle is not allowed to speed below 100km/h . what is the probability that a vehicle will not face speed laws

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