There is an important distinction between a sample of data and population of data. So, let’s take a research…

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…

To better illustrate the concepts of mean, median and mode, let’s dive into an example survey about what makes…

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

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