Scatterplots

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What is a scatterplot?

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

Tags

CCSS.8.SP.A.1

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What does a positive association in a scatterplot indicate?

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A positive association means that as one variable increases, the other variable also tends to increase.

Tags

CCSS.HSS.ID.B.5

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What does a negative association in a scatterplot indicate?

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A negative association means that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

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What does 'no correlation' mean in a scatterplot?

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No correlation means there is no apparent relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

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What is a trend line in a scatterplot?

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A trend line is a straight line that best represents the data points in a scatterplot, showing the general direction of the data.

Tags

CCSS.8.SP.A.2

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How can you use a scatterplot to make predictions?

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You can use a scatterplot to make predictions by looking at the trend line and estimating values based on the relationship shown.

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What is the purpose of a scatterplot?

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The purpose of a scatterplot is to visually display the relationship between two variables and to identify patterns or trends.

Tags

CCSS.8.SP.A.1

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What is an example of a positive correlation?

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An example of a positive correlation is the relationship between studying time and exam scores; more study time usually leads to higher scores.

Tags

CCSS.HSS.ID.B.5

Front

What is an example of a negative correlation?

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An example of a negative correlation is the relationship between the number of absences and final exam scores; more absences usually lead to lower scores.

Tags

CCSS.HSS.ID.B.5

Front

What does it mean if a scatterplot has a cluster of points?

Back

A cluster of points in a scatterplot indicates that there is a strong relationship between the two variables in that area.

Tags

CCSS.8.SP.A.1