The speeds of vehicles on a highway with speed limit 90 km/h are normally distributed with...
The speeds of vehicles on a highway with speed limit 90 km/h are normally distributed with mean 104 km/h and standard deviation 6 km/h. (Round your answers to two decimal places.)
(a) What is the probability that a randomly chosen vehicle is
traveling at a legal speed?
_______ %
(b) If police are instructed to ticket motorists driving 110 km/h
or more, what percentage of motorist are targeted?
_______ %
Homework Answers
So, 0.98% is the probability that a randomly chosen vehicle is traveling at a legal speed.
So. 15.87% of motorist are targeted.
Please comment if any doubt. Thank you.
Add Answer to:
The speeds of vehicles on a highway with speed limit 90 km/h are
normally distributed with...
The speeds of vehicles on a highway with speed limit 110 km/h are normally distributed with...
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Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known...
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The speeds of vehicles on a highway with speed limit 110 km/h are normally distributed with mean 123 km/h and standard deviation 5 km/h. (Round your answers to two decimal places.) (a) What is the probability that a randomly chosen vehicle is traveling at a legal speed? (b) If police are instructed to ticket motorists driving 135 km/h or more, what percentage of motorist are targeted?
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