Line of best Fit

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot. It shows the trend of the data points.

Front

What is the equation of a line in slope-intercept form?

Back

Front

What does the slope of the line of best fit represent?

Back

The slope of the line of best fit represents the rate of change of the dependent variable with respect to the independent variable.

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What does the y-intercept of the line of best fit represent?

Back

The y-intercept of the line of best fit represents the value of the dependent variable when the independent variable is zero.

Front

How do you determine the line of best fit using a graph?

Back

To determine the line of best fit, visually inspect the scatter plot and draw a line that best represents the trend of the data points, minimizing the distance from the points to the line.

Front

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations in the data set, often lying outside the overall pattern.

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How can you identify an outlier in a scatter plot?

Back

An outlier can be identified in a scatter plot as a point that is far away from the cluster of other points.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to make predictions about the dependent variable based on the independent variable.

Front

What does it mean if a line of best fit has a positive slope?

Back

A positive slope indicates that as the independent variable increases, the dependent variable also increases.

Front

What does it mean if a line of best fit has a negative slope?

Back

A negative slope indicates that as the independent variable increases, the dependent variable decreases.