Answered: Suppose IQ scores are approximately…

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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Suppose IQ scores are approximately normally distributed with a mean of 100 and a standard deviation of 15. Answer the following questions.

2.What percent of the population has an IQ below 110? Enter your calculated z-score here; Enter the percentage here;

2a. What percent of the individuals in the population have an IQ above 130? (Individuals in this category are sometimes classified as "gifted".) Enter your calculated z-score here; Enter the percentage here;

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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