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

How do you determine the line of best fit?

Back

By visually inspecting the scatter plot and drawing a line that minimizes the distance between the line and the data points.

Front

What does a positive association in a graph indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative association in a graph indicate?

Back

As one variable increases, the other variable decreases.

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 graph?

Back

By looking for points that are far away from the cluster of other data points.

Front

What is the purpose of a line of best fit?

Back

To summarize the relationship between two variables and make predictions.

Front

What does it mean if a line of best fit is steep?

Back

It indicates a strong relationship between the variables, with a larger change in the dependent variable for a given change in the independent variable.

Front

What does it mean if a line of best fit is flat?

Back

It indicates a weak relationship between the variables, with little change in the dependent variable for a change in the independent variable.

Front

What is the equation of a line of best fit?

Back

Typically expressed in the form y = mx + b, where m is the slope and b is the y-intercept.