A radar unit is used to measure speeds of cars on a motorway. The speeds are normally distributed with a mean of 80 km/hr and a standard deviation of 5 km/hr. a)Write the chance function of the above nrv b) What are the probabilities that a car picked at rand

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A radar unit is used to measure speeds of cars on a motorway. The speeds are normally distributed with a mean of 80 km/hr and a standard deviation of 5 km/hr.

a)Write the chance function of the above nrv

b) What are the probabilities that a car picked at random will travel: at more than 100 km/hr (show it graphically)

c)What are the probabilities that a car picked at random will travel: between 75 km/hr and 90 km/hr (show it graphically) & less than 85 km/hr (show it graphically)

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