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Mathematics, 25.10.2021 14:00 jaydenbomkamp6084

O 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 is taken into
consideration?
(
(b)
How many ways can this be done, if the order of the choices is not taken into
consideration?

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O PROBABILITY Introduction to permutations and combinations
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