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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
21. Psychic Powers Bob is a self-proclaimed “mentalist” who claims that he can pass true>false tests by guessing. In a test of Bob’s claim, he is given 14 true>false ques- tions, and Bob manages to correctly guess the answers to 8 of them. He claims that getting 8 correct answers among 14 is proof of his special powers, because he got more answers correct than the 7 correct answers that are expected with guessing. Is Bob’s claim valid? Why or why not? (Hint: When finding the required probability, re- fer to Table 4-1 and change “girl” to “correct.” The probabilities of girls will be the same as the probabilities of correct guesses.)
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