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

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

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

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

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

The basic principle of how stock prices move is based on market demand and supply. When there are more…