The first requirement is fairly straightforward. A set of measurements for a single variable.In order to make a histogram, you need a few things: Those tests still use histograms as a basis though and creating and observing a histogram is a crucial first step in showing you roughly what sort of distribution you may be dealing with. Of course, if you really want to determine whether your frequency distribution is normal or not, you’d run a normality test in Excel on your data.
