For a density histogram.the area of a bar is equal to the relative frequency of the bar's class. Why can't there be a density bar graph? Choose the correct answer below. A. For a bar graph the area of a bar is equal to the frequency of observations , which cannot be used to build a density bar graph. B. For a bar graph, the width of a bar is not equal to a measurable quantity, so the area of a bar has no meaning. C. For a bar graph, the width of a bar is equal to the number of observations, and the area of a bar cannot be found from this information alone. D. For a bar graph, the width of a bar is equal to the frequency of observations, which cannot be used to build a density bar graph.

Question

For a density histogram.the area of a bar is equal to the relative frequency of the bar's class. Why can't there be a density bar graph? Choose the correct answer below. A. For a bar graph the area of a bar is equal to the frequency of observations , which cannot be used to build a density bar graph. B. For a bar graph, the width of a bar is not equal to a measurable quantity, so the area of a bar has no meaning. C. For a bar graph, the width of a bar is equal to the number of observations, and the area of a bar cannot be found from this information alone. D. For a bar graph, the width of a bar is equal to the frequency of observations, which cannot be used to build a density bar graph.

Answer 1

B. For a bar graph, the width of a bar is not equal to a measurable quantity, so the area of a bar has no meaning.In a bar graph, the bars represent categorical data, and their widths are arbitrary and do not correspond to any numerical value or measurement. Therefore, the concept of area does not apply in the same way it does for a density histogram, where the width represents a range of values and the area corresponds to relative frequency.

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