2)The letters of the word EXCELLENT are arranged in a random order. Find the probability that: a....

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2)The letters of the word EXCELLENT are arranged in a randomorder. Find the probability that:
a. the same letter occurs at each end.
b. X,C, and N occur together, in any order.
c. all 9 letters occur in alphabetical order.

Answer & Explanation Solved by verified expert

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a First we separate out the letters asE 3X 1C 1L 2N 1T 1Total ways to arrange the letters is computed here as Permutation of 9 letters with 3 same letters E and 2 same lettersLNow the same letter occurs See Answer

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