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School of Dentistry: Evidence-Based Practice

Resources to support EBP: EBD

Understanding Statistics

Statistics: 1           : a branch of mathematics dealing with the collection, analysis, interpretation, and presentation of masses of numerical data

  1. 2:  a collection of quantitative data

                                                                                                                             -Merriam Webster online

Other terms used in discussing and using statistics:

variance :  expressed as standard deviation, represents the average distance of each score from the mean

frequency distribution :  commonness of the values of a variable (how often it occurs in the data set)

dispersionthe scattering of the values of a frequency distribution from the mean

range : difference between the least and greatest values of the variable of a frequency distribution


The Electronic Statistics Textbook

The Electronic Statistics Textbook

  • offers training in the understanding and application of statistics and data mining
  • covers a wide variety of applications, including laboratory research (biomedical, agricultural, etc.), business statistics, credit scoring, forecasting, social science statistics and survey research, data mining, engineering and quality control applications