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are statistical errors that are due to the sample not representing the target population adequately.
Proportion
A statistical measure indicating the fraction of a whole that is made up by a certain characteristic or subset.
Negatively Skewed
Refers to a distribution or data set where the tail is longer on the left side of the distribution's peak, indicating that the mass of the distribution is concentrated on the right.
Histogram
A graphical representation of the distribution of numerical data, using bars of different heights.
Representative
Term used to describe a subset or a sample that accurately reflects the larger population or dataset from which it is drawn.
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