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posted by  thedarkknight on 10/4/2008 11:53:26 PM  |  status: Live  

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Course Textbook Chapter Problem
Statistics and Probability N/A N/A N/A
Question Details:
Three friends ( A,B, C ) will participate in a round-robin in which one plays both of the others. Suppose that P ( A beats B )= 0.7, P (A beats C )=0.8 and P(B beats C)=0.6 and that the outcomes of the three matches are independent on one another.
 
a.what is the probability that A wins both her matches and that B beats C?
b.what is the probability that A wins both her matches?
c.what is the probability that A loses both her matches?
d.what is the probability that each person wins one match? (hint, there are two different ways for this to happen. Calculate the probability of each seperately and then add )

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posted by Karma Police on 10/5/2008 1:46:26 AM  |  status: Live
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thedarkknight's comment:
"Dude u rock, Thanks alot, i am doing alot in this probab chapter and still cant do! thanks"
Response Details:
a. P(A wins both matches) and P(B beats C) = P(A beats B)*P(A beats C)*P(B beats C) = .7*.8*.6 = .336
b. P(A wins both matches) = P(A beats B)*P(A beats C) = .7*.8 = .56
c.P(A looses both matches)  = 1- A wins both matches = 1-.56=.44

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posted by thedarkknight on 10/5/2008 5:57:01 PM  |  status: Live
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Response Details:
Thanks, appreciate, im suffering alo in this probablity chapter in stat, i dont know its really blowing me up,...thanks again
 
i will posting some new question, but i have to type myself...thanks again
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