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If you are using a bar graph or histogram to compare two sets of data, explain...

If you are using a bar graph or histogram to compare two sets of data, explain why it is best to use relative frequencies.

Math   Statistics-And-Probability   
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Answer #1

(1)

The difference between frequency and relative frequency is that frequency relies on the actual values in a statistical data set while relative frequency compares these individual values to the overall totals of all data values concerned in a data set.

(2)

Relative frequency histograms are important because the heights can be interpreted as probabilities. These probability histograms provide a graphical display of a probability distribution, which can be used to determine the likelihood of certain results to occur within a given population.

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