MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Help with a,b,c plss
14.Suppose that the speed at which cars go on the freeway is normally
distributed with mean 75 mph and standard deviation 8 miles per hour. Let
X be the speed for a randomly selected car.
What is the distribution of X? X ~ N(
a
If one car is randomly chosen, find the probability that it is
traveling more than 78 mph. Round to 4 decimal places.
If one of the cars is randomly chosen, find the probability that it is
traveling between 73 and 80 mph. Round to 4 decimal places.
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Transcribed Image Text:14.Suppose that the speed at which cars go on the freeway is normally distributed with mean 75 mph and standard deviation 8 miles per hour. Let X be the speed for a randomly selected car. What is the distribution of X? X ~ N( a If one car is randomly chosen, find the probability that it is traveling more than 78 mph. Round to 4 decimal places. If one of the cars is randomly chosen, find the probability that it is traveling between 73 and 80 mph. Round to 4 decimal places.
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