8th grade
posted by pow .
In 2009 the American League’s New York Yankees won the World Series. The Yankees have played in a total of 40 World Series. Of those 40 appearances the Yankees have won 27 championships. Based solely on this data, what is the probability that the New York Yankees will represent the American League in the 2010 World Series and win the championship? Express your answer as a common fraction.

The Yankees were created in 1903. There have been 107 World series since then. The probability that they win the AL, based upon past results, is 40/107. The probability that they win the World series is 27/107.
Past performance is no guarantee of future results.
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