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

Imagine you’re a teacher assessing student performance in a math exam where scores range from 0 to 100. You’ve…

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

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

Unlike the mean and median, which represent average and middle values respectively, the mode identifies the most frequently occurring…

Choosing which statistical test to use, given the variables is often confusing for researchers and analyst. One of the…