Question

the passage below describes an experiment. the members of a basketball team inflated their basketballs to a standard pressure of 8 pounds per square inch. the team members wondered if basketballs with an air pressure above standard pressure would bounce higher. so, the team members increased the air pressure by 0.5 pounds per square inch in three of the balls and by 1 pound per square inch in three other balls. the team members left three balls at standard pressure. then, the team members dropped each of the balls from a ladder and measured how high each one bounced. complete the sentence. in this experiment, the balls inflated to 0.5 pounds per square inch above standard pressure were part of ____________. a control group an experimental group

Explanation:

In an experiment, the control group has no variable change, while the experimental group has the variable being tested changed. Here, the balls with air - pressure above standard are having the air - pressure variable changed, so they are part of the group where the experiment is being conducted on.

Answer:

an experimental group