Lines of Best Fit Flashcards

A straight line drawn on a scatter graph to show the general direction of the data points.

To make predictions and identify trends in bivariate data.

When the points on a scatter graph slope upwards, indicating that as one variable increases, the other also increases.

When the points on a scatter graph slope downwards, indicating that as one variable increases, the other decreases.

When the points on a scatter graph are scattered randomly, showing no relationship between the variables.

Using the line of best fit to estimate values within the range of the data.

Using the line of best fit to estimate values outside the range of the data.

A data point that does not fit the general pattern of the other points on a scatter graph.

The line should have roughly the same number of points above and below it, and follow the trend of the data.

Find the value of one variable by locating the corresponding value of the other variable on the line of best fit.