Statistical analysis is a component of data analytics. In the context of business intelligence (BI), statistical analysis involves collecting and scrutinizing every data sample in a set of items from which samples can be drawn. A sample, in statistics, is a representative selection drawn from a total population. Manufacturers use statistics to weave quality into beautiful fabrics, to bring lift to the airline industry and to help guitarists make beautiful music. Researchers keep children healthy by using statistics to analyze data from the production of viral vaccines, which ensures consistency and safety. Communication companies use statistics to optimize network resources, improve service and reduce customer churn by gaining greater insight into subscriber requirements. Government agencies around the world rely on statistics for a clear understanding of their countries, their businesses and their people. Look around you. From the tube of toothpaste in your bathroom to the planes flying overhead, you see hundreds of products and processes every day that have been improved through the use of statistics.