Answered: 9. Using the empirical rule, the area…

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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9. Using the empirical rule, the area under the normal distribution that lies within three standard deviations of the mean is approximately_____. A. 68% B. 95% С. 97% D. 99.7% 10. Based on the empirical rule, the bell-shaped distribution will have approximately 68% of the data within what number of standard deviations of the mean? А. 0 В. 1 С. 2 D. 3 11. If the average age of retirement for the population in the Philippines is 65 years and with a standard deviation of 5 years, what is the approximate age range in which 95% of people retire? A. 60 - 70 years B. 55-65 years C. 55- 60 years D. 55 - 75 years 12. If the mean and the standard deviation of a continuous randor D. 55- 75 years variable that is normally distributed are 10 and 3, respectively, find an interval that contains 99.7% of the distribution. A. [7, 16] В. (4, 16] C. [7, 16] D. [1, 19]

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