Answer:
<h2><u>
Median</u></h2>
Explanation:
The <u><em>median </em></u>is the value separating the higher half from the lower half of a data sample. For a data set, it may be thought of as the "middle" value. For example, in the data set {1, 3, 3, 6, 7, 8, 9}, the median is 6, the fourth largest, and also the fourth smallest,
A control group is important to a controlled experiment because it is used in an experiment to establish its validity.
Answer:
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Explanation:
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