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on August 21, 2020

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MEASURES OF RELATIONSHIP

Correlation is a statistical method that characterizes the existence of a relationship between two variables. It is also known as a “bivariate” statistic, with bi- meaning two and variate indicating variable or variance. There are 3 types of correlation. They are positive correlation, negative correlation and zero correlation. 1. Positive Correlation The change in one variable is followed by the change in other variable in the same direction. Eg: radius and area of the circle, intelligence and achievement etc. 2. Negative Correlation The change in one variable is followed by the change in the other variable in the opposite direction. i.e. one increases and other decreases. Eg: increase in speed and decrease in time taken. 3. Zero Correlation The change in one variable does not affect the other variable. Eg: size and achievement. Correla...

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