Line of Best Fit

Front

What is a Line of Best Fit?

Back

A Line of Best Fit is a straight line that best represents the data on a scatter plot, showing the trend of the data points.

Front

What does a linear relationship in a scatterplot indicate?

Back

A linear relationship indicates that as one variable increases, the other variable also increases or decreases at a constant rate.

Front

What is an exponential relationship in a scatterplot?

Back

An exponential relationship indicates that one variable increases at an increasing rate relative to the other variable.

Front

How do you determine the Line of Best Fit for a set of data?

Back

The Line of Best Fit can be determined using statistical methods such as least squares regression.

Front

What does a positive association in a scatterplot mean?

Back

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

Front

What does a negative association in a scatterplot mean?

Back

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

Front

What does it mean if there is no association in a scatterplot?

Back

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

Front

What is the purpose of predicting values using a Line of Best Fit?

Back

The purpose is to estimate unknown values based on the trend established by the existing data.

Front

How can you tell if a Line of Best Fit is accurate?

Back

An accurate Line of Best Fit closely follows the trend of the data points and minimizes the distance between the points and the line.

Front

What is the least squares method?

Back

The least squares method is a statistical technique used to find the Line of Best Fit by minimizing the sum of the squares of the vertical distances of the points from the line.