WHAT — A branch of mathematics taking and transforming number into useful information for decision makers also the way to get information from data .
WHY — To under the behavioral/understand the data or fool proof of data. In other word statistics 6include operations research, quality control, estimation, and prediction.
1.To present and describe the business data and information properly
2.Make the reliable forecasts about the business activity
3.Draw the conclusion about large sets using information collected from subsets
4.Improve business process
Before going to see the two different branches of statistics. we should aware about data and variables. Data are the values (measurements or observations) that the variables can assume. Variables whose values are determined by chance are called random variables