Class 11 Maths Statistics Statistics

Statistics

Statistics is the science of average & estimates.  It is the study of collection, analysis, interpretation & Organization of data for specific purpose. We take decision with that data.

 

Data: Everyday, we come across a wide variety of information in the form of facts, numerical figure, table groups etc. Eg: Information related to profit/ loss of a company, average cricket score for a country, Government expenditure in various sector in a given year, election results, Disease vitality information, Movie collection etc. This information is generally provided by TV, magazine, radio, internet etc.  These facts or figure which is numerical or otherwise, collected with a definite purpose is called data. This word is derived by Latin word Datum

 

Usage of statistics:

Demography data

Sales trends

Un-employement ratio

Data for business decision

Experimental data

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