The number of ways to draw n items from a mother set of m items (with replacement).

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Drawing with replacement means that a member of the mother set can be drawn more than once. The idea is, once a member of the set is drawn, you put it back, so it can be drawn again.

For example, the mother set might be the sides of a coin, [H T]. If you draw n times (flip the coin n times), you can get multiple heads (H) and multiple tails (T).

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Take for example, the 6 faces of a die, [1 2 3 4 5 6]. If we roll the die twice, so that n = 2, then there are 6² = 36 possible outcomes.

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