Multiple Choice
The students in Mr. Bertram's class are very noisy when he leaves the room but become quiet when he returns. If this were an experiment, what would the independent variable be?
A) the level of noise when Mr. Bertram was out of the room
B) the change in the level of the classroom noise
C) Mr. Bertram's presence or absence in the room
D) the punishment for being noisy
Correct Answer:
Verified
Correct Answer:
Verified
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