The statement from the lab that best represents a conclusion for the investigation is that students who spend less time studying after school get lower math grades. Option D.
<h3>Aim and conclusion of investigations</h3>
In scientific investigations, conclusions are usually drawn from the aim and objectives of the investigations.
In this case, the aim of the investigation is to identify factors that affect the math grades of students. Math grades happen to be the dependent variable in this case.
Thus, the only conclusion that is more encompassing as far as the aim of the investigation is concerned is option D. That is, students who spend less time studying after school gets lower math grades.
More on research investigations can be found here: brainly.com/question/4118656
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