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 trend of the data points.

Front

What is the purpose of a line of best fit?

Back

To make predictions about the relationship between variables based on the data.

Front

How do you determine the line of best fit?

Back

By visually inspecting the scatter plot and drawing a line that minimizes the distance from all points.

Front

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

Back

As one variable increases, the other variable also increases.

Front

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

Back

As one variable increases, the other variable decreases.

Front

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

Back

There is no relationship between the two variables; the line is horizontal.

Front

What is correlation in the context of a scatter plot?

Back

The degree to which two variables are related, which can be positive, negative, or none.

Front

What does it mean if there is no correlation in a scatter plot?

Back

Changes in one variable do not affect the other variable.

Front

What is an outlier in a data set?

Back

A data point that is significantly different from the other points in the data set.

Front

How can outliers affect the line of best fit?

Back

Outliers can skew the line of best fit, making it less accurate in representing the overall trend.