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Correlation Unit 2 - Chapter 2 – Statistics

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Correlation. Unit 2 - Chapter 2 – Statistics. Correlation. Correlation ( correlation coefficient ) How well does A predict B Positive versus negative correlation Strength of the correlation -1.0 to +1.0 Scatterplot. Correlation. Correlation. Correlation. Correlation. Correlation. - PowerPoint PPT Presentation

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Page 1: Correlation

CorrelationUnit 2 - Chapter 2 – Statistics

Page 2: Correlation

Correlation

Correlation (correlation coefficient)How well does A predict BPositive versus negative correlationStrength of the correlation

-1.0 to +1.0Scatterplot

Page 3: Correlation

Correlation

Page 4: Correlation

Correlation

Page 5: Correlation

Correlation

Page 6: Correlation

Correlation

Page 7: Correlation

Correlation

Page 8: Correlation

Correlation

Page 9: Correlation

Correlation

Page 10: Correlation

Correlation

Page 11: Correlation

Correlation

Page 12: Correlation

CorrelationCorrelation and Causation

Correlation helps predictDoes not imply cause and effect

Page 13: Correlation
Page 14: Correlation
Page 15: Correlation
Page 16: Correlation
Page 17: Correlation

CorrelationIllusory Correlations

Illusory CorrelationPerceived non-existent correlationA random coincidence

Page 18: Correlation

CorrelationPerceiving Order in Random Events

Comes from our need to make sense out of the world

Coin flipPoker hand


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