5. A study was done to see the effect of different cancer drugs on tumor size in male patients. Independent Variable:
Dependent Variable:
Constants:

Independent Variable: different types of cancer drugs

Dependent Variable: tumor size

Constants: gender of patient, (type of cancer/tumor perhaps)

Explanation:

The independent variable will always be what modifies the dependent variable to change. In this case, it is the different types of cancer drugs modifying the size of the tumor in the patients. Dependent variables are what get changed based off of what it is being modified by. The constants should be what stays the same throughout the experiment, or else it won't be a consistent one.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.