Practically: Trendline for non statisticians

This article will discuss how to calculate and display a trendline on a tabular using very simple linear regression, usage of very simple statistical methods for linear regression will be used and and it will be explained and demonstrated on a given data on a data grid. Although we have built in abilities into spreadsheets such as google sheets or microsoft excel, sometimes there is a need to create a trendline manually and for this purpose the methodology of creating trend lines will be explained here. Mainly this is used by programmers to use this method for creating a functionality to display trendlines on charts for some other type of usages to be used at Business intelligence platforms.