Читать книгу Excel Data Analysis For Dummies - Paul McFedries - Страница 12

Are you wondering, “What is data analysis, anyway?” That’s an excellent question! Here’s an answer that I unpack for you as I go along: Data analysis is the application of tools and techniques to organize, study, reach conclusions, and sometimes make predictions about a specific collection of information.

For example, a sales manager might use data analysis to study the sales history of a product, determine the overall trend, and produce a forecast of future sales. A scientist might use data analysis to study experimental findings and determine the statistical significance of the results. A family might use data analysis to find the maximum mortgage it can afford or how much it must put aside each month to finance retirement or the kids’ education.