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| Introduction to quantitative systematics. Bulletin of the AMNH ; v. 93, article 5 |
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| Title: | Introduction to quantitative systematics. Bulletin of the AMNH ; v. 93, article 5 |
| Other Titles: | Quantitative systematics |
| Authors: | Cazier, Mont A. Bacon, Annette Louise. |
| Issue Date: | 1949 |
| Publisher: | New York : [American Museum of Natural History] |
| Series/Report no.: | Bulletin of the American Museum of Natural History ; v. 93, article 5 |
| Abstract: | "Inasmuch as the frequency distributions of many biological data approach the normal probability curve as developed by statisticians it is often possible for the taxonomist to adopt various statistical measures based on this type of distribution in the systematic analyses of biological material. The ones most commonly employed by the systematist to analyze normally distributed data are those of the central tendency (mean, median, and mode), of variation (standard deviation), of variability (coefficient of variability), and of reliability (standard errors). The mean is an expression of the average tendency in the sample and serves as a point on the variation scale from which the measure of variation can be oriented. The median and mode are measures of central tendency used primarily in comparing the frequency distribution of the sample with the normal curve to reveal possible skewness. The standard deviation is the measure of variation with which the systematist estimates the range of v... |
| Description: | p. 347-388 : ill. ; 26 cm. Includes bibliographical references (p. 388). |
| URI: | http://hdl.handle.net/2246/406 |
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