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The following data represents a distribution of speeds at which individuals were traveling on a highway: 64...

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Basic Math

The following data represents a distribution of speeds at whichindividuals were traveling on a highway:

64 76 65 67 67 80 79 73 65 68 64 67 68 70 65 70 72 65 62 64

A) Organize the data above into a frequency distribution withfrequency (f) and relative frequency (rf)) columns.

B) Organize the data above into a class interval frequencydistribution with 10 intervals and frequency (f) and relative (rf)columns.

C) Which type of figure should be used to represent thesedata--- a bar graph, histogram, or frequency polygon? Why? Draw theappropriate figure for these data.

D) Differentiate a qualitative variable from a quantitativevariable.

E) Explain when it would be appropriate to use a bar graphversus a histogram.

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SolutionAClassFrequencyRelative    See Answer
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