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Suppose we want to choose 2 objects, without replacement, from the 4 objects pencil, eras...
Mathematics, 13.03.2021 16:00 sarinawhitaker
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Suppose we want to choose 2 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair.
(a) How many ways can this be done, if the order of the choices matters?
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(b) How many ways can this be done, if the order of the choices does not matter?
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Answers: 1
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