Algebra-1

Question Analysis
This question involves distinguishing between discrete and continuous variables in the context of measuring race time. The main focus is on classifying the variable based on its ability to take any value within a range.

Key Concept Explanation
A continuous variable can take on any value within an interval and can be divided into infinitely small increments. Time is a classic continuous variable because it can be measured with high precision (e.g., 45.2 seconds, 60.78 seconds).
A discrete variable, on the other hand, consists of distinct, countable values with no intermediate meaningful fractions.

Step-by-Step Solution
1. Recognize that the variable here is the time taken to finish a race, which is a measurement.
2. Note that time can be expressed with decimal precision (e.g., 30.5 seconds, 50.25 seconds) and can take any value within a range.
3. ...