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Remember that a world series is considered official only if theTexas Rangers win

ID: 3090485 • Letter: R

Question

Remember that a world series is considered official only if theTexas Rangers win the series. Suppose that this coming year theRangers play the Cubs in the series, and that for any given game inthe series, the probability that the Rangers win is 3/5, andtherefore the Cubs have a 2/5 probability of winning any one game.(The series continues until on team wins four games, and hence theseries). What is the probability that...
a) The Rangers win in four games? b) The Cubs win in four games? c) The series is an official World Series?


a) The Rangers win in four games? b) The Cubs win in four games? c) The series is an official World Series?

Explanation / Answer

a. Multiply the probabilities, since they are consecutive (3/5)^4=.1296 b. same as a with different probabilities (2/5)^4= .0256 c. Im pretty sure it's 3/5 , because that's the odds of themwinning in general, and can be applied to the whole series.