Answered: 12.) The FAA has to periodically revise…

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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12.) The FAA has to periodically revise their rules regarding weight estimates. Airlines use an
estimate for the weight of a passenger of 195 lbs. (an adult traveling in winter including 20 lbs.
of baggage). According to your textbook, assume that men (not carrying baggage) have weights
that are normally distributed with a mean of 188.6 lbs. and a standard deviation of 38.9 lbs.
a.) If one adult male is randomly selected and is assumed to be carrying 20 lbs. carry-on
baggage, find the probability that the total weight is greater than 195 lbs.
b.) What total weight would separate the lower 20% of men carrying 20 lbs. of baggage from
the top 80%?

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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