Question

A(n) ___________ is an arrangement of r objects chosen from n distinct objects, without repetition and without regard to order.

Short answer

A combination is an arrangement of r objects chosen from n distinct objects, without repetition and without regard to order.

Step-by-step solution

Step 1. Given information.

The given statement is:

A(n) ___________ is an arrangement of r objects chosen fromn distinct objects, without repetition and without regard to order.

Step 2. Determine the missing term for the blank.

The notation of combination $C(n,r)$represents the number of arrangements of r objects chosen from n distinct objects without regard to order, where $r\le n$and repetition is not allowed.

It means the required term for the blank is "combination".

Step 3. Conclusion.

A combination is an arrangement of r objects chosen from n distinct objects, without repetition and without regard to order.