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Journal of the American…	1
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Price Index and Its Relation to the Mean and Median Reference Age.

Peer reviewed

Egghe, L. – Journal of the American Society for Information Science, 1997

Proves price index (proportion of references within the last five years of literature) is not a pure function of the mean or median reference age, but a well-defined relation in the form of a typical cloud of points. Compares models for analyzing price index (decreasing exponential and lognormal aging) and explains cloud using results from…

Descriptors: Citations (References), Comparative Analysis, Cost Indexes, Functions (Mathematics)

Integrating Statistics into a Course on Functions.

Peer reviewed

Schultz, James E.; Rubenstein, Rheta N. – Mathematics Teacher, 1990

Discussed are several common aspects of teaching functions and statistics including graphing relations, exploring relations, transforming relations, and modeling situations. Examples of each are provided. (CW)

Descriptors: Functions (Mathematics), Learning Strategies, Mathematical Concepts, Mathematics Education