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

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

We can get the numerical summary through measures of central tendency, location, and variability for numerical data. But numbers…

In previous article we discussed about variance and standard deviation, assuming we had a population of data, even though…

There are two main kinds of studies, observational studies and, experimental studies. The statistical process can be viewed in…

Describing Numerical Data In the previous articles we described two kinds of variable numerical and categorical, also known as…