Question

Jenny wants to determine if a new brand name washing detergent is better than her old detergent. She washes ten dirty t-shirts with the new washing detergent and ten dirty t-shirts with the old detergent. Identify the dependent and independent variables for this experiment.

Answer 1

The dependent variables of this problem are the 20 t-shirts that got washed.
The independent variables of this problem are the new and the old detergent.