Answered: 500 freshmen at Prairieville High…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

500 freshmen at Prairieville High School took an algebra test. The scores were normally distributed with a mean of 75 and a standard deviation of 7.

a: What percentage of scores are between 61 and 89?

b: What percentage of scores are between 75 and 82?

c: What percentage of scores are less than 61?

d: What percentage of scores are greater than 96?

e: What percentage of scores are less than 82?

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.

Expert Solution