This article, created by Alan W. Sykes of Swansea University College, describes an alternate calculation of expected value, which illustrates continuous random variables. The author uses charts, graphs and text to help...

This site, created by Michelle Lacey of Yale University, give a definition and an example of boxplots. Topics include outliers, medians, as well as lower and upper quartiles. The author addresses the possible uses of...

This tutorial, created by Thomas W. MacFarland of Nova Southeaster University, describes various measures of central tendency, their theory and use, and demonstrates them with an example on final exam scores. Data sets...

This chapter of the HyperStat Online Textbook discusses in detail sampling distributions of various statistics (mean, median, proportions, correlation, etc.), differences between such statistics, the Central Limit...

This collection of applets, created by McGraw-Hill Higher Education, is designed illustrate key concepts described in "Statistical Techniques for Business and Economics," but does not require use of this textbook. Topics...