what is correlation coefficient (r)? Difine perfect correlation, zero correlation and limited correlation
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In statistics, a perfect positive correlation is represented by the correlation coefficient value +1.0, while 0 indicates no correlation, and -1.0 indicates a perfect inverse (negative) correlation. ... A positive correlation does not guarantee growth or benefit.
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In statistics, the Pearson correlation coefficient ― also known as Pearson's r, the Pearson product-moment correlation coefficient, the bivariate correlation, or colloquially simply as the correlation coefficient ― is a measure of linear correlation between two sets of data..
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