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 »

Top Q&A For: What is a regression line

What is the minimum sample size for multiple regression?

Multiple regression helps you to learn about the relationship between several independent variables. The minimum number of samples you need depends on the degree of accuracy you want in your result... Read More »

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 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 »