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. 1 OR 2 type of stapler 1.independent variable

1 OR 2 number of jams 2. dependent variable

This question is asking to identify the independent and dependent variables in the experiment.

Independent variable: Type/brand of stapler

Dependent variable: Number of jams

Explanation:

The independent variable in an experiment is the variable that is subject to control or manipulation by the experimenter. It is manipulated in order to effect a change in the dependent variable, which is dependent on it. In this experiment, the INDEPENDENT variable is the BRAND/TYPE OF STAPLER USED because it is what is changed or manipulated to produce an outcome.

On the other hand, a dependent variable is that which the experimenter measures. It is the variable that responds to the changes made to the independent variable. In this experiment, the NUMBER OF JAMS is the variable responding to the type of stapler used (independent), hence, it is the DEPENDENT variable.

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i believe it would be c: tons.