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

The basic principle of how stock prices move is based on market demand and supply. When there are more…

One issue with range and the interquartile range (IQR) both is that they don’t include information from all the…

So, let’s look at another example to understand tabulating the two categorical variables. In previous article we have described…

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

Stem and leaf plot is used to plot for a numerical variable. It’s essentially a way to list our…