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A radar unit is used to measure the speed of cars on a highway during rush...

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Statistics

A radar unit is used to measure the speed of cars on a highwayduring rush hour traffic. The speeds of individual cars arenormally distributed with a mean of 55 mph and a standard deviationof 3.2 mph. Find the probability of the following events:
(a) A car traveling faster than average.
(b) A car traveling over 65 mph
(c) A car traveling between 48 and 50 mph.

Answer & Explanation Solved by verified expert
4.2 Ratings (763 Votes)
Mean 55Standard deviation 32aWe have to find the probability that a car traveling faster thanaverageThat is we have to find PX 55For    See Answer
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