The simplest way to find the average (mean) of a set of numbers is to use the AVERAGE function. This calculation gives you the arithmetic mean, which sums up all the numbers and divides the result by ...

In math and statistics, you may occasionally need to calculate the slope of a line generated by coordinates in the (x,y) format. The slope is a value that indicates the rate at which the y value of a ...

Excel spreadsheets do so much, from making lists to crunching numbers to acting as sophisticated flat-file databases. We’re creating this guide to make sure you master all the essentials and more.