Suppose we want to choose 4 letters, without replacement, from 16 distinct letters. (a) If the order of the choices is not

Question

Suppose we want to choose 4 letters, without replacement, from 16 distinct letters.
(a) If the order of the choices is not relevant, how many ways can this be done?
(b) If the order of the choices is relevant, how many ways can this be done?

Kunduz · Accepted Answer

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