Answered: adult males

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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Question

The weights of adult males are normally distributed, with a mean of 172 pounds and a standard deviation of 29 pounds. Draw a normal curve as part of your work.

a. Find the probability one randomly selected male weighs between 150 and 200 pounds.

b. What percent of males weigh more than 190 pounds?

c. what is the weight of a male that is at the maximum value of the lowest 25% of males?

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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