Line of Best Fit

Front

What is a line of best fit used for?

Back

To make predictions.

Front

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

Back

The rate of change between the variables.

Front

What is an outlier in a data set?

Back

A data point that differs significantly from other observations.

Front

How do you identify an outlier on a scatter plot?

Back

Look for points that are far away from the cluster of other points.

Front

What type of regression analysis is used for linear relationships?

Back

Linear regression.

Front

What is the purpose of regression analysis?

Back

To determine the relationship between variables.

Front

What does a positive slope indicate in a line of best fit?

Back

As one variable increases, the other variable also increases.

Front

What does a negative slope indicate in a line of best fit?

Back

As one variable increases, the other variable decreases.

Front

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

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the y-intercept in a line of best fit?

Back

The point where the line crosses the y-axis.