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   ocr: STATISTICS HE BRANCH ofmathematics - D T concerned with collecting and interpreting data is calledstatistics. The data are often collected by interviewing a sample group of people who are meant to represent the whole population. Ifthe sample group has been put together carefully, the findings should be fairly accurate for the entire population. The information gained from the sample group can be very useful to government agencies and businesses, helping them find out tastes, opinions, and the probable outcome of events. Wall Street stock market Statistics play an important role in financialj f ...