Essentials of Statistics, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780321926739
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 5, Problem 6RE
In Exercises 5 and 6, refer to the table in die margin. The random variable x is the number of males with tinnitus (ringing ears) among four randomly selected males (based on data from “Prevalence and Characteristics of Tinnitus among US Adults” by Shargorodsky et al., American Journal of Medicine, Vol. 123, No. 8).
6. Tinnitus Find the mean and standard deviation tor the random variable x. Use the
| x | p(x) |
| 0 | 0.674 |
| 1 | 0.280 |
| 2 | 0.044 |
| 3 | 0.003 |
| 4 | 0+ |
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Chapter 5 Solutions
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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