How analysis of Big Data is useful for Organizations?

Effective analysis of big data provides a lot of business advantage as organizations will learn which areas to focus on and which areas are less important. Big Data analysis provides some early key indicators that can prevent the company from a huge loss or help in grasping a great opportunity with open hands!
A precise analysis of Big data helps in decision many! For instance ,now a days people rely so much on face book and twitter before buying any product or service.