5. Mariah wants to know which laundry detergent works the best. She has 5 squares of the same fabric; and they are all the same size. She puts identical dirt stains on each of them. She washes one of them with no detergent at all, and then washes each of the others in 4 different detergents. She uses the same amount of detergent, and she makes sure that the water is the same detergent. After they are washed, she checks to see how much of the stain remains on each square of fabric. Identify each of the following:
Independent variable:
Dependent variable: