Answer:
The independent variable is the exercise and the dependent variable is the weight.
Explanation:
In a scientific experiment there can be an independent and a dependent variable, usually the researcher will seek to establish the existence of a causal relationship between both, that is, that one variable depends on the other.
The independent variable is a characteristic that is studied in the sample, and affects another variable; the dependent variable is the one that is affected by the independent variable. In this case, the researcher wants to know how exercise affects weight, therefore, exercise is the independent and wieght the dependent variable.
