Question

Choose the word or term that best completes the sentence.

The arrangement in which order is important is called a (combination, permutation).

Short answer

The word “permutation” completes the given sentence.

Step-by-step solution

Step 1. Define permutation.

When the objects are arranged so that order is important and every possible order of the objects is provided, the arrangements is called a permutation.

Step 2. Define combination.

A selection of objects in which order is not important is called a combination.

Step 3. Complete the given sentence.

In permutation the order of arrangement is important.

Hence,

The arrangement in which order is important is called a permutation.

Therefore, the word “permutation” completes the given sentence.