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September 1, 2015

Homework Help: Statistics

Posted by Anonymous on Friday, February 21, 2014 at 11:56am.

Selecting a letter of the alphabet: If 3 letters of the alphabet are selected at random, find the probability of getting at least one letter "x". Letters can be used more than once.

My answer was: P(at least 1 "x) = 1 - (25/26)^3 = 1951/17576 or 0.11

Is this correct?

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