Cuemath
Cuemath: Outlier
A comprehensive guide for exploring the topic of outliers with definitions, what is an outlier, how to find outliers using the turkey method and the interquartile range, solved examples, and interactive questions.
Texas Instruments
Texas Instruments: Numb3 Rs: "Take Out" Outliers
Based off of the hit television show NUMB3RS, this lesson has students create box-and-whisker plots for given data, and then determine which (if any) data points are outliers. Students determine outliers through two methods in this...
Shodor Education Foundation
Shodor Interactivate: Box Plot
Students can create box plots for either built-in or user-specified data as well as experiment with outliers. User may choose to use or not use the median for calculation of interquartile range.
University of Georgia
University of Georgia: Measures of Variation
Lesson plan introduces and explains how to calculate measures of variation concepts such as range and quartile.
McGraw Hill
Mc Graw Hill Education: Glencoe: Measures of Variation
Lesson examples that review how to calculate measures of variation such as range and outliers.