Statistics is a branch of applied mathematics concerned with the collection, organization, and interpretation of quantitative data in order to draw conclusions. The creation of tables or graphs is a method for organizing raw data to allow a quick overview of the information collected.

Case Study: XYZ Corp. Performance Analysis

John Smith is a successful CRM (Customer Relations Manager) at XYZ Corp. He sells products V, X, Y, and Z in the New England Region: Massachusetts, Maine and Vermont. John is required to present information on how well the company’s products were sold during year 2005 within his territory at the annual executive management meeting. He knows that quantitative data is best understood when presented in graphical form. John has prepared the following charts to include in his performance analysis presentation:

Sales by product and State



Sales by Product



New England Annual Sales Growth