Explain what is KPI, design of experiments and 80/20 rule?
KPI : It stands for Key Performance Indicator, it is a metric that consists of any combination of spreadsheets, reports or charts about business process
Design of experiments : It is the initial process used to split your data, sample and set up of a data for statistical analysis
80/20 rules : It means that 80 percent of your income comes from 20 percent of your clients
