Step 1: Understand the set \( X \).
The set \( X \) consists of integers \( n \) such that \( 2 \leq |n| \leq 5 \), so the possible values of \( n \) are \( -5, -4, -3, 3, 4, 5 \).
Step 2: Compare the quantities.
The greatest integer in \( X \) is 5, and the least integer in \( X \) is -5. The absolute value of both of these integers is 5. Therefore, the two quantities are equal.
Step 3: Conclusion.
Thus, the correct answer is that the two quantities are equal.
Final Answer:
\[
\boxed{\text{The correct answer is (3) The two quantities are equal.}}
\]