Influence of Outliers on Correlation

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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

Screenshot

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Source:

CAUSEweb

Resource URL Clicks:

Cumulative Rating:

NOT YET RATED

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