Question

a stapler is used to staple 500 papers, it jams 25 times during trial 1. a different brand stapler performs the same test in trial 2, it jams 75 times. in each trial the same brand of paper and staples were used. identify the constants in this scenario. a. number times stapler jams b. staples and paper c. staplers d. trial 1

Explanation:

Constants are factors that do not change during an experiment. Here, the brand of paper and staples remain the same in both trials, while the number of jams varies (so A is wrong), the staplers are different (so C is wrong), and trial 1 and trial 2 are different experimental instances (so D is wrong).

Answer:

B. Staples and paper