Question

question 8
in a good experiment, how many variables should be changed while collecting data?
a only 1
b all variables should be changed at the same time
c 2
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assessment due date 9/15/25, 4:00 pm (edt)
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Explanation:

In a well - designed experiment, to clearly determine the effect of a particular factor on the outcome, only one variable should be changed at a time while keeping all other factors constant. This allows for accurate identification of cause - and - effect relationships.

Answer:

A. only 1