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 5.2, Problem 16BSC
Genetics. In Exercises 15-18, refer to the accompanying table, which describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children.
16.
| Number of Girls X | P(X) |
| 0 | 0.001 |
| 1 | 0.010 |
| 2 | 0.044 |
| 3 | 0.117 |
| 4 | 0.205 |
| 5 | 0.246 |
| 6 | 0.205 |
| 7 | 0.117 |
| 8 | 0 044 |
| 9 | 0.010 |
| 10 | 0.001 |
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A common way for two people to settle a frivolous dispute is to play a game of rock-paper-scissors. In this game, each person simultaneously displays a hand signal to indicate a rock, a piece of paper, or a pair of scissors. Rock beats scissors, scissors beats paper, and paper beats rock. If both players select the same hand signal, the game results in a tie.
Two roommates, roommate A and roommate B, are expecting company and are arguing over who should have to wash the dishes before the company arrives. Roommate A suggests a game of rock-paper-scissors to settle the dispute.
Consider the game of rock-paper-scissors to be an experiment. In the long run, roommate A chooses rock 21% of the time, and roommate B chooses rock 61% of the time; roommate A selects paper 39% of the time, and roommate B selects paper 21% of the time; roommate A chooses scissors 40% of the time, and roommate B chooses scissors 18% of the time. (These choices are made randomly and independently of each…
Chapter 5 Solutions
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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