Twin studies track how similar identical and fraternal twins are on various characteristics, even if they don't grow up together. Correlation lets researchers put a number on it. Scroll down the page to find comprehensive student and teacher guides to accompany the video. [10:50]

Concepts

correlation, correlation coefficient

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Additional Tags

relationship between variables, strength of relationship between two variables, annenberg foundation, annenberg learner, annenberg media, closed caption and math correlation, identical twins study

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Classroom Considerations

• Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional|practice

Common Core

HSS-ID.C.9