Question

For frequency distribution presentation , which option is wrong.

A Bar graph presents score categories that are measured from a nominal or an ordinal scale
B In polygon, an additional line is not drawn at each end to bring the graph back to a zero frequency
C In a histogram, a bar is centered above each score ( or class interval) so that the height of the bar corresponds to the frequency
D The smooth curve emphasizes the fact that the distribution is not showing the exact frequency for each category.
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