STATISTICAL TECHNIQUES AND TOOLS
CORRELATION COEFFICIENT COEFFICIENT OF DETERMINATION
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Question
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The correlation coefficient
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is the same as r2.
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can never be negative.
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is the square of coefficient of determination.
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is the square root of coefficient of determination.
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Explanation:
Detailed explanation-1: -The coefficient of determination or R squared method is the proportion of the variance in the dependent variable that is predicted from the independent variable. It indicates the level of variation in the given data set. The coefficient of determination is the square of the correlation(r), thus it ranges from 0 to 1.
Detailed explanation-2: -The R-squared value, denoted by R 2, is the square of the correlation. It measures the proportion of variation in the dependent variable that can be attributed to the independent variable. The R-squared value R 2 is always between 0 and 1 inclusive. Perfect positive linear association.
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