Answered: The weights of college students at a…

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 weights of college students at a particular college has a normal distribution with a mean of 126 pounds and a standard deviation of 6 pounds. The college has 700 students.

A. How many students weigh between 120 and 132 pounds?

B. How many students weigh less than 114 pounds?

C. How many students weigh more than 140 pounds?

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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