Show complete solution. A personal computer is used for office work at home, research, communication, personal finances, education, entertainment, social networking, and a myriad of other things. Suppose that the average number of hours a household personal computer is used for entertainment is four hours per day. Assume the times for entertainment are normally distributed and the standard deviation is two and a half hours. a) Find the probability that a household personal computer is used for entertainment between 3.8 and 6.2 hours per day. b) Find the probability that a household personal computer is used for entertainment for more than 3 hours per day. c) Find the probability that a household personal computer is used for entertainment for less than 2.5 hours per day.
Show complete solution. A personal computer is used for office work at home, research, communication, personal finances, education, entertainment, social networking, and a myriad of other things. Suppose that the average number of hours a household personal computer is used for entertainment is four hours per day. Assume the times for entertainment are normally distributed and the standard deviation is two and a half hours. a) Find the probability that a household personal computer is used for entertainment between 3.8 and 6.2 hours per day. b) Find the probability that a household personal computer is used for entertainment for more than 3 hours per day. c) Find the probability that a household personal computer is used for entertainment for less than 2.5 hours per day.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Show complete solution.
A personal computer is used for office work at home, research, communication, personal finances,
education, entertainment, social networking, and a myriad of other things. Suppose that the average
number of hours a household personal computer is used for entertainment is four hours per day.
Assume the times for entertainment are normally distributed and the standard deviation is two and
a half hours.
a) Find the probability that a household personal computer is used for entertainment between 3.8
and 6.2 hours per day.
b) Find the probability that a household personal computer is used for entertainment for more than
3 hours per day.
c) Find the probability that a household personal computer is used for entertainment for less than
2.5 hours per day.
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