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

Introduction Let’s take a hypothetical example and consider a company as property. The value of a property can be…

Creating good graphics is a very important part of data visualization. Data visualization is not a science this is…

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

Imagine you’re a teacher assessing student performance in a math exam where scores range from 0 to 100. You’ve…

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