Answered: According to the College Board, SAT…

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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According to the College Board, SAT writing scores from the 2015 school year for high school students in the United States were normally distributed with a mean of 484 and a standard deviation of 115. Use a standard normal table to determine the probability that a randomly chosen high school student who took the SAT in 2015 will have a writing SAT score between 400 and 700 points. Give your answer as a percentage rounded to one decimal place.

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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