Scatterplots

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What is a scatterplot?

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A scatterplot is a type of 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 association in a scatterplot indicate?

Back

A positive association 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 association in a scatterplot indicate?

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

Tags

CCSS.HSS.ID.B.5

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What does no association mean in a scatterplot?

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

Tags

CCSS.HSS.ID.B.5

Front

How can you identify a positive association in a scatterplot?

Back

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

Tags

CCSS.HSF-LE.A.1B

Front

How can you identify a negative association in a scatterplot?

Back

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

Tags

CCSS.HSF-LE.A.1B

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visualize the relationship between two quantitative variables and to identify patterns, trends, or correlations.

Tags

CCSS.8.SP.A.1

Front

What does the term 'outlier' mean in the context of scatterplots?

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An outlier is a data point that differs significantly from other observations in the dataset, which can affect the overall interpretation of the scatterplot.

Tags

CCSS.8.SP.A.1

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

Tags

CCSS.HSS.ID.C.8

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What does a correlation coefficient of 0 indicate?

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A correlation coefficient of 0 indicates no linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5