Final answer:
Histograms represent data frequencies through proportional bars, and the shape of the curve drawn on top can indicate data distribution characteristics.
Explanation:
Histograms are graphs where the height and area of the bars are proportionate to the frequencies in each category of a variable. When a smooth curve is drawn through the tops of the bars of a histogram, the shape of the curve can provide insights into the data distribution, such as whether it has a hump in the middle or towards the ends.
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