Algebra 1 - 3rd Edition

Chapter 7: Statistics

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http://www.freemathhelp.com/Lessons/Algebra_2_Probability_and_Statistics_BB.htm
This page contains a video tutorial with notes covering an introduction to probability and statistics.

http://www.robertniles.com/stats/
This site defines the different components of statistics.

http://www.regentsprep.org/regents/math/ALGEBRA/AD2/measure.htm
This page explains the measures of central tendency and has examples.

http://www.regentsprep.org/regents/math/ALGEBRA/AD2/Pmeasure.htm
This page contains word problems that practice the measures of central tendency.

http://staff.argyll.epsb.ca/jreed/math9/strand4/scatterPlot.htm
This site defines scatter plots and lines of best fit and has interactive graph applets on which to plot points.

http://www.mathsisfun.com/definitions/stem-and-leaf-plot.html
This site contains a quick guide to using a stem-and-leaf plot.

http://regentsprep.org/regents/math/stemleaf.htm
NEW This page has an explanation of stem-and-leaf plots with examples of how to construct them and an explanation of the special case ones.

http://www.purplemath.com/modules/boxwhisk.htm
This site explains quartiles and box-and-whisker plots through text and graphs.

http://www.regentsprep.org/regents/math/algebra/AD3/boxwhisk.htm
NEW This page explains box-and-whisker plots and their quartiles and the special case.

http://simon.cs.vt.edu/SoSci/converted/Dispersion_I/activity.html
NEW Java applets that interactively teach about measures of dispersion.