What is a regression line?

Answer A regression line, sometimes called a "line of best fit," is one drawn through a scatter plot of data points that attempts to give perspective to the general relationship of the data.PurposeA regre... Read More »

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How to Do a Regression Analysis?

A large portion of statistics is about analysing regression models. Which regression model is the best fit?This happens whether you are using a multiple regression model with several variables, or ... Read More »

How to Carry out Regression Testing?

Regression testing is done to ensure that a bug that had been fixed doesn’t affect the functioning of the application or software and also to check for new defects in the already tested software.... Read More »

How to Run a Multiple Regression in Excel?

Excel is a great option for running multiple regressions when a user doesn't have access to advanced statistical software.  The process is fast and easy to learn.

How to Calculate Linear Regression on a TI-83?

Using a TI-83 graphing calculator allows you to enter data into the calculator then find the linear regression of your data points. Linear regression is if you plotted every single point in your da... Read More »