Data is set of observation. This observation can be collected in various ways such as field notes, survey or…

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

We can get the numerical summary through measures of central tendency, location, and variability for numerical data. But numbers…

1. “Fallen angels will all go back up, eventually.” A “fallen angel” is a stock that once performed well…

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

To understand how spread out a set of data points can be, we need to measure the variation. The…