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

Describing Numerical Data In the previous articles we described two kinds of variable numerical and categorical, also known as…

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

Sharpe Ratio is the most extensively used metric in the finance world to evaluate the performance of an investment.…

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

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