Linear regression helps us model the relationship between variables. As an example, we could estimate sales (one variable) based on TV ad spend (another variable). This video shows how to perform both simple linear regression and multiple linear regression in Microsoft Excel. Here is the sample file: https://www.codybaldwin.com/sample-file-linear-regression. Interested in learning more? You can use the following link to enroll in my course, "Become a Microsoft Excel Wizard in 1 Hour": https://www.codybaldwin.com/excel-course. Here are instructions for adding the Data Analysis ToolPak in Microsoft Excel: https://support.microsoft.com/en-us/office/load-the-analysis-toolpak-in-excel-6a63e598-cd6d-42e3-9317-6b40ba1a66b4