A comprehensive site on statistics and probability with a readable text and some interactive practice on various graph formats. Sophisticated, extensive source for data analysis in a wide variety of fields. Graphs and concepts from a selection of academic fields. This site provides links to many others with good resources in statistics. Wide variety of data materials from the Census bureau.
Students roll dice on the net for statistical analysis and probability.
Simple, organized text of basic statistics terms with some practice. Detailed explanation of scientific notation with examples. This site provides practice in scientific notation for students. Rational numbers taught and practiced simply. Wide variety of activities on fractions, decimals and percents.