Answered

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which action describes an experimental investigation

Sagot :

alathn9876

Answer: a "fair test" is designed and variables are actively manipulated, controlled, and measured

Explanation:

Experimental investigations involve a process in which a "fair test" is designed and variables are actively manipulated, controlled, and measured in an effort to gather evidence to support or refute a causal relationship. Experimental investigations have a control group which does not receive any treatment.

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