Answer:
Variables are not fixed while quantitative variables are fixed, is the right answer.
Explanation:
The variables are the values that are not fixed and it changes with the mathematical calculations. For example, x,y, z, etc.are the variables whose values are not numeric and it can be changed. While the quantitative variable is the numeric values that are fixed and contain a unit along with the number. For example, the grades of students, 1, 4.5, 6, etc. Here these are quantitative variables because these values are numeric values and fixed values.