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

We have covered major measures of center and location—mean, median, and mode—we now turn to other important measures: percentiles…

Mean is the one of the most commonly used measures of central tendency. It’s a powerful tool for understanding…

Variance represents the average of the squared deviations from the mean. Because we square the deviations, the variance is…

If you have a sample or population of data and you want to understand the different properties, the different…

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