If $S _ {xx } = 2 , S _ { yy } = .5 ,\text {, and } S _ { xy } = - .75$ then the sample correlation coefficient r equals __________.

Name: If $S _ {xx } = 2 , S _ { yy } = .5 ,\text {, and } S _ { xy } = - .75$ then the sample correlation coefficient r equals __________.
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The Answer of If $S _ {xx } = 2 , S _ { yy } = .5 ,\text {, and } S _ { xy } = - .75$ then the sample correlation coefficient r equals __________.

If Sxx=2,Syy=.5,, and Sxy=−.75S _ {xx } = 2 , S _ { yy } = .5 ,\text {, and } S _ { xy } = - .75Sxx​=2,Syy​=.5,, and Sxy​=−.75

If $S _ {xx } = 2 , S _ { yy } = .5 ,\text {, and } S _ { xy } = - .75$