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

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

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

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

Histograms are incredibly useful when you have a large dataset and want to visualize the distribution of a numerical…

Previous article discussed the basic contingency table of proportions and percentages. People often want to ask more about relationships…