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rbe type test for ssc 11(credit mandal maths)

created Dec 15th 2020, 13:25 by kekegenkai



325 words
44 completed
Everyday we come across a lot of information in the form of facts,
numerical figures, tables, graphs, etc. These are provided by newspapers,
televisions, magazines and other 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 five year plan,
polling results, and so on. These facts or figures, which are numerical or
otherwise, collected with a definite purpose are called data. Data is the
plural form of the Latin word datum. Of course, the word ‘data’ is not
new for you. You have studied about data and data handling in earlier
classes. Our world is becoming more and more information oriented.
Every part of our lives utilises data in one form or the other. So, it
becomes essential for us to know how to extract meaningful information
from such data. This extraction of meaningful information is studied in a
branch of mathematics called Statistics.
The word ‘statistics’ appears to have been derived from the Latin
word ‘status’ meaning ‘a (political) state’. In its origin, statistics was
simply the collection of data on different aspects of the life of people,
useful to the State. Over the period of time, however, its scope
broadened and statistics began to concern itself not only with the
collection and presentation of data but also with the interpretation and
drawing of inferences from the data. Statistics deals with collection,
organisation, analysis and interpretation of data. The word ‘statistics’
has different meanings in different contexts. First, statistics is used in a
plural sense, meaning numerical data. These may include a number of
educational institutions of India, literacy rates of various states, etc.
Second, the word ‘statistics’ is used as a singular noun, meaning the
subject which deals with the collection, presentation, analysis of data as
well as drawing of meaningful conclusions from the data. In this chapter,
we shall briefly discuss all these aspects regarding data.

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