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O COUNTING AND PROBABILITY Introduction to permutations and combinations Suppose we want to choose 2 letters, without replacement, from the 5 letters A, B, C,

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O COUNTING AND PROBABILITY Introduction to permutations and combinations Suppose we want to choose 2 letters, without replacement, from the 5 letters A, B, C, D, and E. (a) How many ways can this be done, if the order of the choices matters? X 5 ? (b) How many ways can this be done, if the order of the choices does not matter? Explanation Check 0 2021 McGrew Hill Education, All Rights Reserved

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