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Title: Influence of Outliers on Correlation
Url: https://serc.carleton.edu/sp/cause/datasim/examples/17733.html
Creator: Arroway, Pam
Gratton, Jennifer
Stanislav, Steve
Woodard, Roger
Publisher: Carleton College (Northfield, Minn.)
Description: This activity begins with an instructor demonstration followed by a student out-of-class assignment. Students will observe their instructor create a scatter plot and observe how the correlation coefficient changes when outlier points are added. Students are then given a follow up assignment, which guides them through the applet. In addition, the assignment provides insight about outliers and their effect on correlation. This activity will show exactly how outliers numerically change the correlation coefficient value and to what degree.
LC Classification: Science -- Mathematics -- Mathematical statistics -- Multivariate analysis -- Regression analysis. Correlation analysis
Science -- Mathematics -- Mathematical statistics -- Study and teaching. Research
GEM Subject: Mathematics -- Instructional issues
Mathematics -- Statistics
Key Concept: Mathematics -- Correlation
Mathematics -- Statistics
Resource Type: Instructional Material
Instructional Material -- Demonstration
Instructional Material -- Lesson/Lesson Plan
Instructional Material -- Interactive Simulation
Format: Document -- DOC
Document -- HTML
Application -- Java
Audience: Educator
Learner
Education Level: Higher Education
Higher Education -- Undergraduate (Lower Division)
Higher Education -- Undergraduate (Upper Division)
Higher Education -- Technical Education (Upper Division)
Higher Education -- Technical Education (Lower Division)
Vocational/Professional Development Education
Language: English
Access Rights: Free access
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Source: CAUSEweb
Resource URL Clicks: 5
Cumulative Rating: NOT YET RATED
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