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

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

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

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…

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