Question

Two groups of students tested to compare their speed working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators.

Independent variable:

dependent variable:

controlled variable:

Answer 1

Controlled Variable: The same math problems

Dependent Variable: The amount of time taken to answer

Independent Variable: One group using calculators and the other group not using calculators.

Step-by-step explanation:

The dependent variable is the variable being tested and the independent variable is what is being changed. The controlled is what is staying the same.

Answer 2

The independent variable is the calculator

The dependent variable is the speed of solving the problem.

The constant variable is the same set of problems that were assigned to two groups of students.

The dependent variable is the one that is being tested by experimentation. The dependent variable depends on the independent variable.

The independent variable can b changed by the experimenter whereas the constant variable remains unchanged throughout the experiment.