🔢 Combinations

Counting problem

Determine the number of ways to select objects where the order does not matter.

Theory:

The number of ways to choose $r$ objects from a set of $n$ distinct objects is given by:

$$C(n,r)=\frac{n!}{r!(n-r)!}$$

Where:

• $n$ : Total number of distinct objects
• $r$ : Number of objects to choose