These sites deal with statistical outliers. They explore how to detect outliers in your data, how to handle these outliers, and how outliers influence correlational analysis. Resources include articles, student activities and videos. A link to eThemes Resource: Math: Statistics is included.
How Well Can Hand Size Predict Height? Lesson
This activity uses student's own data to introduce bivariate relationships using hand size to predict height. In this lesson students will identify outlying causes and determine the effect of the outlying cases.
Stats Tutorial - Dealing with Outliers
This stats tutorial uses the Q-test to deal with statistical outliers in your data
Influence of Outliers on Correlation
In this learning activity, students will observe how the correlation coefficient changes when outlier points are added. In addition, the assignment provides insight about outliers and their effect on correlation. This activity will show exactly how outliers numerically change the correlation value and to what degree
Detection and Accommodation of Outliers in Normally Distributed Data Sets
Learn more about statistical outliers including: sources of outliers, managing outliers, labeling outliers, accommodating outliers, detecting outliers, conclusions and variables.
Missing Values, Outliers, Robust Statistics & Non-parametric Methods
This article looks at how to deal with "messy" data that contain transcription errors or extreme and skewed results.
Some Simpler Statistics Test for Rejecting Outliers in Quantitative Data
This two-page PDF explores some simpler statistics tests for rejecting outliers including: rule of huge error, Dixon's Q-test, and Grubbs' T-tests.
Mean, Media, and Outliers Video
This demonstration explain how outliers affect the mean, but not the median
Measures of Central Tendency with Outlier Video
This video explores the impact of outliers on measures of central tendency. (Total Running Time: 10:32)
Corrections for Outliers Video
This video explores the steps in a regression analysis that have to be taken after identifying outliers in your data. (Total Running Time: 5:55)
eThemes Resource: Math: Statistics
These sites focus on basic statistics analysis including descriptive statistics and inferential statistics. There are information on data collection, data analysis, and data interpretation. Includes simulations, exercises, and lesson plans. There are links to eThemes resource on Statistics for Graphing and Probability.
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