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

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

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

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

In a dataset, an alternative plot apart from the histogram is a density plot. Similar to a histogram, a…

Bar Graph-two categorical variable In the previous article, we have discussed tabulating and graphing one categorical variable through table…