19. A report in 2010 indicates that Americans between the ages of 8 and 18 spend an average of µ = 7.5 hours per day using some sort of electronic device such as smart phones, computers, or tablets. Assume that the distribution of times is normal with a standard devia- tion of o = 2.5 hours and find the following values. a. What is the probability of selecting an individual who uses electronic devices more than 12 hours a day? b. What proportion of 8- to 18-year-old Americans spend between 5 and 10 hours per day using elec- tronic devices? In symbols, p(5

19. A report in 2010 indicates that Americans between the ages of 8 and 18 spend an average of µ = 7.5 hours per day using some sort of electronic device such as smart phones, computers, or tablets. Assume that the distribution of times is normal with a standard devia- tion of o = 2.5 hours and find the following values. a. What is the probability of selecting an individual who uses electronic devices more than 12 hours a day? b. What proportion of 8- to 18-year-old Americans spend between 5 and 10 hours per day using elec- tronic devices? In symbols, p(5

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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