Answered: Assume the average number of fatal…

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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Assume the average number of fatal crashes caused by sleep-deprived drivers each year is 2,000. Additionally assume the annual number of fatal crashes per year is normally distributed with a standard deviation of 275. What is the probability there will be fewer than 1,560 fatal crashes in a year? Enter your answer as a number rounded to three decimal places, e.g. 0.192.

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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