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

One of the way to measure the variability is to calculate the difference of each observation from the mean.…

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

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

Choosing which statistical test to use, given the variables is often confusing for researchers and analyst. One of the…

Stem and leaf plot is used to plot for a numerical variable. It’s essentially a way to list our…