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Peer reviewedHopkins, Kenneth D. – Journal of Experimental Education, 1979
Formulas are derived for computing the chi-square statistic from proportions or percentages, both for tests of goodness of fit and association. Advantages of the new formulas are given, as are some examples. (Author/MH)
Descriptors: Expectancy Tables, Goodness of Fit, Mathematical Formulas, Percentage
Peer reviewedFields, Lawrence D.; Hawkes, Stephen J. – Journal of College Science Teaching, 1986
Addresses the principles and problems associated with the use of significant figures. Explains uncertainty, the meaning of significant figures, the Simple Rule, the Three Rule, and the 1-5 Rule. Also provides examples of the Rules. (ML)
Descriptors: College Science, Computation, Higher Education, Mathematical Formulas
Peer reviewedVest, Floyd – Journal of Computers in Mathematics and Science Teaching, 1991
After discussing the role of supercalculators within the business calculus curriculum, several examples are presented which allow the reader to examine the capabilities and codes of calculators specific to different major manufacturers. The topics examined include annuities, Newton's method, fixed point iteration, graphing, solvers, and…
Descriptors: Calculators, Calculus, Computer Assisted Instruction, Graphs
Intercultural Development Research Association, San Antonio, TX. – 1986
Volume 2, the second of eight publications developed by the Intercultural Development Research Association (IDRA) as part of the "Texas School Dropout Survey Project," focuses on the issue of the computation of a dropout rate. Three important factors which influence the mathematical computation of a dropout rate are identified: time…
Descriptors: Black Youth, Computation, Cultural Differences, Dropout Rate
