On a dry surface the braking distance in meters of a, Ask an Expert

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On a dry surface, the braking distance (in meters) of a Cadillac is normally distributed with a mean of 48m and standard deviation 2.1m.

A. What is the probability that a randomly selected Cadillac has a braking distance between 50m and 54m?

B. What braking distance of a Cadillac represents the first quartile?

C. The 11% of Cadillac's with the longest braking distance have a braking distance of at least what distance?

Replacement times for DVD players are normally distributed with a mean of 8.9 years and standard deviation of 1.8 years. If you want to provide a warranty so that only 4% of the DVD players will be replaced before the warranty expires, what is the time length of the warranty in years?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91111415

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