statistics

Statistics is the branch of mathematics that transforms data into useful information for decision makers. 
These transformations often require complex calculations that are practical only if done by computer, so using statistics usually means also using computers. This is especially true when dealing with the large volumes of data that a typical business collects.Attempting to do statistics using manual calculations for such data would be too timeconsuming to benefit business.When you learn statistics, you learn a set of methods and the conditions under which it isappropriate for you to use those methods. And because so many statistical methods are practical only when you use Computers, learning statistics also means learning more about using computer programs that perform statistical analyses.

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