Question

1. a stapler is used to staple 100 papers, it jams 5 times during the trial. a different brand of stapler performs the same test; it jams 22 times.

Explanation:

Identify the independent variable

In this scenario, we are comparing two different brands of staplers to see how they perform. The factor that the experimenter deliberately changes or manipulates is the brand of the stapler. Therefore, the Independent Variable is the brand of stapler.

Identify the dependent variable

The outcome that is being measured or observed to see how it responds to the change in the independent variable is the number of times each stapler jams. Therefore, the Dependent Variable is the number of times the stapler jams (or the reliability/jam rate of the stapler).

Answer:

• Independent Variable: Brand of stapler
• Dependent Variable: Number of times the stapler jams