Interpret & Predict Scatterplots

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What is a scatterplot?

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A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

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CCSS.8.SP.A.1

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What does a positive correlation in a scatterplot indicate?

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A positive correlation indicates that as one variable increases, the other variable also tends to increase.

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CCSS.HSS.ID.B.5

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What does a negative correlation in a scatterplot indicate?

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A negative correlation indicates that as one variable increases, the other variable tends to decrease.

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CCSS.HSS.ID.B.5

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What is the line of best fit?

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The line of best fit is a straight line that best represents the data on a scatterplot, showing the general direction of the data points.

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CCSS.8.EE.B.5

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How can you estimate values using a scatterplot?

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You can estimate values by locating the corresponding point on the line of best fit for a given input value.

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What does it mean if points on a scatterplot are widely spread out?

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Widely spread out points indicate a weak correlation between the two variables.

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CCSS.HSF-LE.A.1B

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What does it mean if points on a scatterplot are closely clustered?

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Closely clustered points indicate a strong correlation between the two variables.

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CCSS.HSF-LE.A.1B

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What is the purpose of using a scatterplot in data analysis?

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Scatterplots are used to visually assess the relationship between two quantitative variables and identify trends or patterns.

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CCSS.8.SP.A.1

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What is an outlier in a scatterplot?

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An outlier is a data point that lies significantly outside the range of the other points, potentially indicating an anomaly.

Tags

CCSS.8.SP.A.1

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How can you determine the strength of a correlation from a scatterplot?

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The strength of a correlation can be determined by how closely the points cluster around the line of best fit.

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CCSS.HSS.ID.B.5