Identify the event that is a combination. A baseball manager choosing a first and second batter from nine starters. The order of

Question

Identify the event that is a combination.
A baseball manager choosing a first and second batter from nine starters.
The order of placing seven books on a shelf.
A person selecting four balls without replacement from a container of twenty balls.
The number of four-digit passcodes with no digits repeated.

Kunduz · Accepted Answer

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