How Do You Use a Scatter Plot to Find a Line of Fit? A line-of-fit is a line that summarizes the trend in a set of data. In this tutorial, you'll see how to graph data on a coordinate plane and draw a line-of-fit for that data. Check it out!
First, the trend line gives an estimated moving average of 660 for the autumn 2002 term. Now, for the autumn seasonal adjustment: For each autumn, use the trend line on the time series graph to estimate the seasonal effect. Autumn 2000: actual number enrolling estimated moving average = 520 340 = 180.