## Math Problem Statement

From a group of 7 people, you randomly select 4 of them.

What is the probability that they are the 4 oldest people in the group?

## Solution

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## Math Problem Analysis

### Mathematical Concepts

Combinatorics

Probability

### Formulas

Combination formula: C(n, k) = n! / (k!(n-k)!)

### Theorems

Basic probability theorem

### Suitable Grade Level

Grades 10-12

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