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

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

In data analysis, identifying outliers with the box plot  rule helps pinpoint data points that significantly deviate from the…

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

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

In a box plot, the “box” represents the interquartile range (IQR) of the data. Inside the box, you find…