MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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2. An IQ test measures a person’s intelligence. The distribution of IQ scores is unimodal
and symmetric and follows the empirical rule. The test is designed so that the mean score


It Is 100 points, and the standard deviation is 16 points.


a. Draw a sketch of the distribution to 3 standard deviations of the mean.
b. What is the range of scores of people within 1 standard deviation?
c. What percent of scores are less than 68?
d. What should you score on the test to be in the top 5%?
e. What range of scores contain approximately 95% of the data

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