In the world of statistics and data analysis, understanding the relationship between two variables is crucial. One of the…

The Challenger disaster occurred on January 28, 1986, during the launch of the Space Shuttle Challenger. The Space Shuttle…

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

When analyzing distributions, we often discuss their modalities. The modalities is the number of peaks they exhibit. A distribution…

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

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