Creating good graphics is a very important part of data visualization. Data visualization is not a science this is…

There are two main kinds of studies, observational studies and, experimental studies. The statistical process can be viewed in…

In a dataset, an alternative plot apart from the histogram is a density plot. Similar to a histogram, a…

Data is set of observation. This observation can be collected in various ways such as field notes, survey or…

A straightforward solution to deal with unit of variance which is in squared units is to simply calculate the…

In the previous article we discussed how to visualize two categorical variables through dodged, staked bar graphs. Another way…