Lines of Best Fit

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, showing the trend of the data points.

Tags

CCSS.8.EE.B.5

Front

What does a positive association in a graph indicate?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.HSF-LE.A.1B

Front

What does a negative association in a graph indicate?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.HSF-LE.A.1B

Front

What is the purpose of a line of best fit?

Back

To make predictions about future data points based on the trend of the existing data.

Tags

CCSS.HSF-LE.A.1B

Front

What does it mean if a line of best fit does not pass through the origin?

Back

It indicates that the relationship between the variables does not start at zero.

Tags

CCSS.HSF.LE.B.5

Front

How can you determine if a line is a line of best fit?

Back

It should pass through the middle of the data points, minimizing the distance from all points.

Front

What is a scatter plot?

Back

A graph that uses dots to represent the values obtained for two different variables.

Tags

CCSS.8.SP.A.1

Front

What does it mean if a line of best fit is steep?

Back

It indicates a strong relationship between the variables, with a larger change in the dependent variable for a change in the independent variable.

Front

What does it mean if a line of best fit is flat?

Back

It indicates a weak relationship between the variables, with little change in the dependent variable for a change in the independent variable.

Tags

CCSS.8.EE.B.5

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.

Tags

CCSS.HSS.ID.C.9