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| Raw data is data obtained from sources before it is organized into a meaningful form. |
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| A frequency distribution lists each category of data and the number of occurrences for each category of data. |
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| Relative Frequency is the proportion (or percent) of observations within a category and is found using the formula RelativeFrequency = Frequency / SumOfAllFrequencies |
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| Relative Frequency Distribution |
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| A relative frequency distribution lists each category of data together with the relative frequency. |
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A bar graph is constructed by labelling each category of data on a horizontal axis and the frequency or relative frequency of the category on the vertical axis. Rectangles of equal width are drawn for each category. The height of each rectangle is the category's frequency or relative frequency. [image] |
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A pareto chart is a bar graph whose bars are drawn in decreasing order of frequency or relative frequency. [image] |
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A side by side bar graph is a bar graph that contains a 2nd series of data. This has the 2nd series placed right next to the bars of the first series. [image] |
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A pie chart is a circle divided into sectors. Each sector represents a category of data. The area of each sector is proportional to the frequency of the category. *Pie charts can only be created if all the categories of the variable under consideration are represented.* [image] |
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