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

Bar Graph-two categorical variable In the previous article, we have discussed tabulating and graphing one categorical variable through table…

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

If you have a sample or population of data and you want to understand the different properties, the different…

In previous article we discussed about variance and standard deviation, assuming we had a population of data, even though…

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