Mr. Smith designed an experiment to see which
group of students would test the highest. He set
up three groups of 25 students. Group A did not
study for the test, group B studied for 5 hours, and
group C studied for 10 hours.
Which group is the control group?
A. Group A
B. Group B
C. Group C
D. There is no control group
of 3
Answers: 1
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Mr. Smith designed an experiment to see which
group of students would test the highest. He set
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