Answered: 1) Professor Menjivar assumes that exam…

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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1) Professor Menjivar assumes that exam scores are normally distributed and wants to grade on the curve. The mean score was 58, with a standard deviation of 16.

a) If he wants 15% of the students to receive an A. Find the minimum score to receive an A.

b) If he wants 20 percent of the students to receive a B. Find the minimum score to receive a B?

c) If he wants 40% to receive a C. find the minimum score to receive a C.

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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