statistics and probability refresherand python practice in this we are going to go through few concepts of statistics and probabilitywhich might be refresher for some of you these concepts are important to go through if you want to be data scientist we will see examples to understand these concepts better we will also look at how to implement those examples using actual python code we'll be covering the following topics in this types of data you may encounter and how to treat them accordingly statistical concepts of meanmedianmodestandard deviationand variance probability density functions and probability mass functions types of data distributions and how to plot them understanding percentiles and moments