Public Administration

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Marlo A


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February 28, 2014








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Questions like, how many people are above average and how many scored above the cutoff passing score, are questions that can't be answered without some working knowledge of statistics. The bar graph explanation was pretty clear in the chapter, but that might be just because it's the most frequently used graph to convey statistical data...
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Everyone is familiar with the bar graph, but when it comes down to frequency polygons things get a little fuzzy. Chapter 13 explains how distributions can have the same values for the mode, median, and mean but are different in the way the scores are spread out. The variability estimate helps determine how compressed or expanded the distributions are...
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