Algebra-1

Question Analysis
This question tests the student's ability to recognize discrete variables. Discrete variables are those that can only take specific, isolated values, such as the number of cars passing through a toll booth in one hour.

Key Concept Explanation
Discrete variables are obtained by counting and have distinct, non-continuous values. They can only be integers, not fractions or decimals.

Step-by-step Solution
1. Identify the nature of the variable: the number of cars passing through a toll booth in one hour.
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