Transcription of 14.1 Introduction
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14.1 Introduction
238 MATHEMATICSFile Name : C:\Computer Station\Maths-IX\Chapter\Chap-14\Chap-14 (02-01-2006). IntroductionEveryday we come across a lot of information in the form of facts, numerical figures,tables, graphs, etc. These are provided by newspapers, televisions, magazines andother means of communication. These may relate to cricket batting or bowling averages,profits of a company, temperatures of cities, expenditures in various sectors of a fiveyear plan, polling results, and so on. These facts or figures, which are numerical orotherwise, collected with a definite purpose are called data. Data is the plural form ofthe Latin word datum. Of course, the word data is not new for you.
240 MATHEMATICS File Name : C:\Computer Station\Maths-IX\Chapter\Chap-14\Chap-14 (02-01-2006).PM65 14.3 Presentation of Data As soon as the work related to collection of data is over, the investigator has to find out
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