Simply collecting data is not enough. You can fill spreadsheets with data, but it's useless if you can't act on it. Regression is one of the most powerful statistical tools for finding relationships ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Catherine Falls Commercial/Getty Images Linear regression is a type ...

Microsoft Excel 2010 comes with an expansion pack called the Analysis ToolPak that includes a number of analylitical tools, like the ability to create a liner regression table. Even though the ToolPak ...

Our teacher already knows there is a positive relationship between how much time was spent on an essay and the grade the essay gets, but we’re going to need some data to demonstrate this properly.

1.Get the independent variable X and dependent variable Y. 2.Calculate the mean of the X -values and the mean of the Y -values. 3.Find the slope m of the line of best fit using the formula. 4.Compute ...