In this case, when I took the step of plotting the results of the equation I had developed from the trend line coefficients, I discovered there was a problem.Īnother trick you can use with the functions generated by the trendline function within a graph is to right click on the trendline label, click format trendline label, then change the format category to number and increase the decimal places to however many are appropriate. That being that its always good to check your answer somehow before moving forward with it. ![]() How to apply the method of least squares in Excel to find the regression line which best fits a collection of data pairs. See Accessing Excel data from the computer lab Insert a row at the top and add titles to the columns if necessary or desired. Insert your data into an Excel spreadsheet.
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