statistics

statistics (sta-tis´tiks)

1. A collection of numerical values, items of information, or other facts which are numerically grouped into definite classes and subject to analysis, particularly analysis of the probability that the resulting empirical findings are due to chance. 2. The science and art of collecting, summarizing and analyzing data that are subject to random variation.
descriptive s.numerical values such as mean, median, and mode which describe the chief features of a group of scores, without regard to a larger population.
inferential s.s. from which an inference is made about the nature of a population; the purpose is to generalize about the population, based upon data from the sample selected from the population.
vital s.systematically tabulated information concerning births, marriages, divorces, separations, and deaths, based on the numbers of official registrations of these vital events; the branch of s. concerned with such data.

 

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