Transcription of 14.1 Introduction - NCERT
{{id}} {{{paragraph}}}
Example: stock market
14.1 Introduction - NCERT
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. You havestudied about data and data handling in earlier world is becoming more and more information oriented. Every part of ourlives utilises data in one form or the other. So, it becomes essential for us to know howto extract meaningful information from such data.
File Name : C:\Computer Station\Maths-IX\Chapter\Chap-14\Chap-14 (02-01-2006).PM65 in a table, as given below: Table 14.1 Marks Number of students (i.e., the frequency) 10 1 20 1 36 3 40 4 50 3 56 2 60 4 70 4 72 1 80 1 88 2 92 3 95 1 Total 30 Table 14.1 is called an ungrouped frequency distribution table, or simply a frequency distribution table.
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: