asked 221k views
5 votes
Which part of an investigation is only found in an experimental investigation?

A. a hypothesis
B. a control group
C. a procedure
D. a conclusion

2 Answers

3 votes

b i just did the test to

answered
User Mohammad Saberi
by
8.6k points
3 votes
b, i just took the test
answered
User Cnu
by
8.4k points

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