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A monkey hits the keys of a typewriter at random, picking each of the 26 letters of the English alphabet uniformly each time regardless of
A monkey hits the keys of a typewriter at random, picking each of the 26 letters of the English alphabet uniformly each time regardless of what it has been picked at all other times.
(1) What is the chance that the first five letters are HAPPY, in that order? (2) What is the chance that the first five letters can form the word HAPPY, by rearrangement if necessary?
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