Scatter Plot & Association

Front

What is a scatter plot?

Back

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

Tags

CCSS.8.SP.A.1

Front

What does a positive association in a scatter plot indicate?

Back

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

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CCSS.HSS.ID.B.5

Front

What does a negative association in a scatter plot indicate?

Back

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

Tags

CCSS.HSF-LE.A.1B

Front

What is a nonlinear association?

Back

A nonlinear association occurs when the relationship between two variables cannot be accurately represented by a straight line.

Tags

CCSS.8.F.A.3

Front

What is the purpose of a line of best fit in a scatter plot?

Back

The line of best fit is used to summarize the relationship between the variables and can help predict values.

Tags

CCSS.8.SP.A.2

Front

How can you identify a positive association in a scatter plot?

Back

A positive association can be identified when the points on the scatter plot trend upwards from left to right.

Tags

CCSS.HSF-LE.A.1B

Front

How can you identify a negative association in a scatter plot?

Back

A negative association can be identified when the points on the scatter plot trend downwards from left to right.

Tags

CCSS.HSF-LE.A.1B

Front

What does it mean if a scatter plot shows no association?

Back

No association means that there is no discernible pattern or relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are points that fall far from the general pattern of the data and can significantly affect the line of best fit.

Tags

CCSS.8.SP.A.1

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure of the strength and direction of the relationship between two variables.

Tags

CCSS.HSS.ID.C.8