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A First Course in Probability (10th Edition)
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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2. According to a study, the average number of hours of TV viewing per household per week in the Philippines is 50.4 hours and the standard deviation is 11.8 hours. If a random sample of 42 households is taken, what is the probability that- a. the sample average is more than 52 hours? b. the sample average is less than 47.5 hours?
Transcribed Image Text:2. According to a study, the average number of hours of TV viewing per household per week in the Philippines is 50.4 hours and the standard deviation is 11.8 hours. If a random sample of 42 households is taken, what is the probability that- a. the sample average is more than 52 hours? b. the sample average is less than 47.5 hours?
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