Transcription of Correlation Ch.-7 (Ver 8)
{{id}} {{{paragraph}}}
Example: bachelor of science
Correlation Ch.-7 (Ver 8)
As the summer heat rises, hillstations, are crowded with more andmore visitors. Ice-cream sales becomemore brisk. Thus, the temperature isrelated to number of visitors and saleof ice-creams. Similarly, as the supplyof tomatoes increases in your localmandi, its price drops. When the localharvest starts reaching the market,the price of tomatoes drops from aprincely Rs 40 per kg to Rs 4 per kg oreven less. Thus supply is related toprice. Correlation analysis is a meansfor examining such relationshipssystematically. It deals with questionssuch as: Is there any relationship betweentwo variables?Correlation71. INTRODUCTIONIn previous chapters you have learnthow to construct summary measuresout of a mass of data and changesamong similar variables. Now you willlearn how to examine the relationshipbetween two this chapter shouldenable you to: understand the meaning of theterm Correlation ; understand the nature ofrelationship between twovariables; calculate the different measuresof Correlation ; analyse the degree and directionof the FOR ECONOMICS If the value of one variablechanges, does the value of theother also change?
correlation and Spearman’s rank correlation. A scatter diagram visually presents the nature of association without giving any specific numerical value. A numerical measure of linear relationship between two variables is given by Karl Pearson’s coefficient of correlation. A relationship is …
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: