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CORRELATION
Correlation is the study of the liner relationship between two variable when there is a relationship of quantitative measures between two set of variable the appropriate statistical tool for measuring the relationship and expressing each in a precise way is known as correlation. For example there is a relationship between the heights and weights of persons demand and prices of commodities etc.
According to W.I. King Correlation means that between two series or groups of data there exists some relationship connections.
According to croxton and Cowden" The appropriate statistical tool for discovering and measuring the relationship of quantitative nature and expressing it in brief formula is known as correlation.
The coefficient of correlation measures the degree of relationship between two set of figures. As the reliability of estimates depend upon the closeness of the relationship it is imperative that utmost care be taken while interpreting the value of coefficient of correlation otherwise fallacious conclusion can be draw.
A paper mill produces two grades of paper viz., X & Y. Because of raw material restrictions, it cannot produce more 400 tons of grade X paper & 300 tons of grade Y paper in a week.
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INFORMATION AND OTHER RELATED CONCEPTS - THEIR MEANING AND CHARACTERISTICS: You may often hear or read in newspapers and other popular magazines about "exponential growth of i
Application of the chi Square Test The chi square distribution has a number of applications are given below: a.Chi Square test of goodness of fit. b.Chi square te
Question: Machine A costs Rs. 9000. Annual operating costs are Rs. 200 for the first year, and then increase by Rs. 2000 every year. Suppose that the machine has no resale valu
Limitation The report should also point out the main limitation of the research reported therein. This will be helpful to the reader who can form his own opinion
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Simple Line Graphs a. Simple Histogram A simple histogram is a techniques used plotting a time series on the graph paper. The data are arranged according to the time
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