Scatterplots

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What is a scatterplot?

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A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Tags

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.

Tags

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.

Tags

CCSS.HSS.ID.B.5

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What is no correlation in a scatterplot?

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No correlation means there is no apparent relationship between the two variables; changes in one variable do not predict changes in the other.

Tags

CCSS.HSS.ID.B.5

Front

What is a line of best fit?

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

Tags

CCSS.8.EE.B.5

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How can you identify a positive correlation on a scatterplot?

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A positive correlation can be identified when the points on the scatterplot slope upwards from left to right.

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How can you identify a negative correlation on a scatterplot?

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A negative correlation can be identified when the points on the scatterplot slope downwards from left to right.

Tags

CCSS.HSS.ID.B.5

Front

What is the purpose of using scatterplots?

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Scatterplots are used to visually assess the relationship between two quantitative variables.

Tags

CCSS.8.SP.A.1

Front

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

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A cluster of points indicates that there is a concentration of data points in that area, suggesting a possible relationship.

Tags

CCSS.8.SP.A.1

Front

What is an example of a situation that might show a negative correlation?

Back

An example of a negative correlation is the relationship between the outside temperature and the number of people wearing gloves.

Tags

CCSS.HSS.ID.B.5