(4.20 Purchasing digital devices for children. Refer to the PC Magazine (December 2019) article on parents' opinions on the appropriate age a child should receive their first digital device, Exercise 3.20 (p. 164). Let x represent the age (in years) a parent would buy their child their first smart speaker (e.g., Amazon Echo, Google Home). Consider the probability distribution for x (adapted from the article) shown in the table. a. Verify that the probabilities in the table sum to 1. b. Find P(x < 6). c. Find P(10< x < 15). d. Find E(x) and practically interpret the value. Age (years) to Buy 1st Smart Speaker 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Probability .01 .02 .02 .02 .03 .04 .05 .08 .07 .07 .06 .09 .05 .15 .15 .09
(4.20 Purchasing digital devices for children. Refer to the PC Magazine (December 2019) article on parents' opinions on the appropriate age a child should receive their first digital device, Exercise 3.20 (p. 164). Let x represent the age (in years) a parent would buy their child their first smart speaker (e.g., Amazon Echo, Google Home). Consider the probability distribution for x (adapted from the article) shown in the table. a. Verify that the probabilities in the table sum to 1. b. Find P(x < 6). c. Find P(10< x < 15). d. Find E(x) and practically interpret the value. Age (years) to Buy 1st Smart Speaker 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Probability .01 .02 .02 .02 .03 .04 .05 .08 .07 .07 .06 .09 .05 .15 .15 .09
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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