Unformatted text preview: in ascending or descending order). For the quiz discussed above, the median is 8 (Schaefer & Lamm, 1992: 36). Rates & Percentages A percentage is a portion based on 100. Use of percentages allows one to compare groups of different sizes. Example: Comparing Populations of Different Sizes If we are comparing contributors to a town's Baptist and Roman Catholic churches, the absolute numbers of contributors could be misleading if there were many more Baptists than Catholics living in the town. With percentages, we can obtain a more meaningful comparison, showing the proportion of persons in each group who contribute to their respective churches (Schaefer & Lamm, 1992: 36)....
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- Fall '10
- different sizes, Basic Statistical Concepts, Schaefer & Lamm