The major outputs you need to be concerned about for simple linear regression are the R-squared, the intercept (constant) and the GDP's beta (b) coefficient. The R-squared number in this example ...

A Refresher on Regression Analysis. Understanding one of the most important types of data analysis. by Amy Gallo. November 4, 2015. uptonpark/iStock/Getty Images. Leer en español Ler em português.