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For questions 12-14, use the following table, where x represents the number of books read per month during the past year. The probability distribution of x is shown here: 1 4 5 3 P(x) 0.09 0.14 0.31 0.33 0.09 0.04 12. What is P(2 sx < 5)? 13. What is the expected value of X? 14. What is the standard deviation of X?

For questions 12-14, use the following table, where x represents the number of books read per month during the past year. The probability distribution of x is shown here: 1 4 5 3 P(x) 0.09 0.14 0.31 0.33 0.09 0.04 12. What is P(2 sx < 5)? 13. What is the expected value of X? 14. What is the standard deviation of X?

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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12. Is P(2 <= x <= 5) the same thing as summing the values of 2-5?

For questions 12-14, use the following table, where x represents the number of books read per month during the past year. The probability distribution of x is shown here: 2 3 4 5 P(x) 0.09 0.14 0.31 0.33 0.09 0.04 12. What is P(2sx< 5)? 13. What is the expected value of X? 14. What is the standard deviation of X?
Transcribed Image Text:For questions 12-14, use the following table, where x represents the number of books read per month during the past year. The probability distribution of x is shown here: 2 3 4 5 P(x) 0.09 0.14 0.31 0.33 0.09 0.04 12. What is P(2sx< 5)? 13. What is the expected value of X? 14. What is the standard deviation of X?
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