Answered: The variable xx denotes the time taken…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The variable xx denotes the time taken in seconds for a computer link to be made between the terminal in an executive's office and the computer at a remote factory site. x is known to have a Normal distribution, with a mean of 15 seconds and a standard deviation of 3 seconds. Calculate P(x>20), i.e., the probability that it takes longer that 20 seconds for the link to be made.

(Give a proportion to 4 decimal places.)

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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