Scatterplots and Correlation

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How can you visually assess correlation in a scatterplot?

By observing the direction and pattern of the data points; closely clustered points indicate stronger correlation.

What are outliers and how do they affect correlation?

Outliers are data points that deviate significantly from other observations; they can skew the correlation coefficient.

What does a correlation coefficient of -1 imply?

A correlation coefficient of -1 implies a perfect negative correlation between the two variables.

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