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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
104.  Consider four independent events A1, A2, A3, and A4 and let pi = P(Ai) for i = 1, 2, 3, 4. Express the probability that at least one of these four events oc- curs in terms of the pi s, and do the same for the probability that at least two of the events occur.
105.  A box contains the following four slips of paper, each having exactly the same dimensions: (1) win prize 1; (2) win prize 2; (3) win prize 3; (4) win prizes 1, 2, and 3. One slip will be randomly se- lected. Let A1 = {win prize 1}, A2 = {win prize 2}, and A3 = {win prize 3}. Show that A1 and A2 are independent, that A1 and A3 are independent, and that A2 and A3 are also independent (this is pairwise independence). However, show that
P(A1Â n A2Â n A3) -:: P(A1) # P(A2) # P(A3), so the
three events are not mutually independent.
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