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What is multiple correlation.

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Important Questions on Correlation Analysis

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Which of the following correlations is the following example :  the height and weight of a group of persons.
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The height and weight of a group of persons will have _______ correlation.
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If r =+1, then the correlation is called
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What is the correlation called if r = +1.
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If the two variables do not have linear relationship between them then they have a correlation coefficient equal to
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______ measures the degree of relationship between two variables.
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Find the value of correlation coefficient from the given scatter diagram.

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“The attempts to determine the degree of relationship between variables is correlation” is the definition given by
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If r=+1, then the correlation is called
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If the two variables do not have linear relationship between them then they are said to have
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Which of the following values suits the given plot.

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If -1<r<0, then the correlation is called
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______ presents a description of quantitative relation between two series of facts.

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When the plotted points lie on a straight line falling from upper left hand corner to lower right hand corner then it is called
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The correlation coefficient lies in the interval
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The correlation coefficient of x and y is symmetric. Hence
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The statistical device which helps in analyzing the covariation of two or more variables is
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 If all the plotted points lie on a straight line falling from upper left hand corner to lower right hand corner then it is called
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The purpose of the study of _________ is to identify the factors of influence and try to control them for better performance.
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If 0<r<1, then the correlation is called