4. The time taken to assemble a car in a certain plant is a random variable having a normal distribution of 20 hours and a standard deviation of 2 hours. What is the probability that a car can be assembled at this plant in a period of time a) less than 19.5 hours? b) between 20 and 22 hours?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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4.
The time taken to assemble a car in a certain plant is a random variable having a
normal distribution of 20 hours and a standard deviation of 2 hours. What is the
probability that a car can be assembled at this plant in a period of time
a) less than 19.5 hours?
b) between 20 and 22 hours?
Transcribed Image Text:4. The time taken to assemble a car in a certain plant is a random variable having a normal distribution of 20 hours and a standard deviation of 2 hours. What is the probability that a car can be assembled at this plant in a period of time a) less than 19.5 hours? b) between 20 and 22 hours?
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