Line 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 overall trend of the data points.

Front

How do you determine the line of best fit?

Back

By using methods such as least squares regression, which minimizes the distance between the data points and the line.

Front

What does a positive correlation indicate in a scatter plot?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate in a scatter plot?

Back

As one variable increases, the other variable decreases.

Front

What does no correlation mean?

Back

There is no discernible relationship between the two variables.

Front

What is an outlier in a data set?

Back

A data point that differs significantly from other observations, often lying outside the overall pattern.

Front

How can you identify an outlier on a scatter plot?

Back

An outlier appears far away from the cluster of other data points.

Front

What is the purpose of the line of best fit?

Back

To summarize the relationship between variables and make predictions.

Front

What is the least squares method?

Back

A statistical method used to determine the line of best fit by minimizing the sum of the squares of the vertical distances of the points from the line.

Front

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

Back

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