Scatterplots

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What is a scatterplot?

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A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

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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 does it mean if a scatterplot shows no correlation?

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No correlation means there is no apparent relationship between the two variables; the data points do not follow a pattern.

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CCSS.HSS.ID.B.5

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How can you identify a linear relationship in a scatterplot?

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A linear relationship can be identified if the data points form a straight line or a pattern that closely resembles a straight line.

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CCSS.8.F.A.3

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What is the purpose of using a scatterplot?

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The purpose of using a scatterplot is to visually represent the relationship between two variables and to identify trends or patterns in the data.

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CCSS.8.SP.A.1

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What is the independent variable in a scatterplot?

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The independent variable is the variable that is manipulated or changed in an experiment, typically plotted on the x-axis.

Tags

CCSS.8.SP.A.1

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What is the dependent variable in a scatterplot?

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The dependent variable is the variable that is measured or observed in an experiment, typically plotted on the y-axis.

Tags

CCSS.8.SP.A.1

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How do you interpret the slope of a line in a scatterplot?

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The slope indicates the rate of change between the two variables; a steeper slope means a greater change.

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CCSS.8.EE.B.5

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What does it mean if a scatterplot has outliers?

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Outliers are data points that are significantly different from the others; they can affect the overall interpretation of the data.

Tags

CCSS.8.SP.A.1