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Scatterplots

Creating and interpreting scatterplots

Learn

Constructing a scatter plot

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Example of direction in scatterplots

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Example: Correlation coefficient intuition

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Correlation and causality

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Positive and negative associations in scatterplots

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Practice

Constructing scatter plotsGet 3 of 4 questions to level up!

Making appropriate scatter plotsGet 3 of 4 questions to level up!

Positive and negative linear associations from scatter plotsGet 3 of 4 questions to level up!

Describing trends in scatter plotsGet 3 of 4 questions to level up!

Correlation coefficient intuitionGet 3 of 4 questions to level up!

Estimating with trend lines

Learn

Estimating the line of best fit exercise

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Line of best fit: smoking in 1945

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Interpreting a trend line

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Equations of trend lines: Phone data

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Practice

Eyeballing the line of best fitGet 3 of 4 questions to level up!

Estimating slope of line of best fitGet 3 of 4 questions to level up!

Estimating equations of lines of best fit, and using them to make predictionsGet 3 of 4 questions to level up!

Interpreting slope and y-intercept for linear modelsGet 3 of 4 questions to level up!

About this unit

Scatterplots show us relationships and patterns in data, and we use those patterns to make predictions.