If the relationship between the two variables x and y is given by 2x +

1.	If the relationship between the two variables x and y is given by 2x + 3y + 4 = 0, then the value of the correlation coefficient between x and y is ____..
Answer» Step-by-step explanation: Take this as a theorem : If y=a+bx,then the correlation coefficient between X and Y ,R, is +1 if b>0 and is -1 if b<0. That is,it depends on the SLOPE of the GIVEN straight line. If it positive,r=+1 and if it negative,r=-1. Now,COMING to the given question; Y=-2/3X-4/3. Here,the slope is negative. Hence,r=-1. Therefore,the correlation coefficient between X and Y is -1.

If the relationship between the two variables x and y is given by 2x + 3y + 4 = 0, then the value of the correlation coefficient between x and y is ____..

Answer»

Step-by-step explanation:

Take this as a theorem :

If y=a+bx,then the correlation coefficient between X and Y ,R, is +1 if b>0 and is -1 if b<0.

That is,it depends on the SLOPE of the GIVEN straight line. If it positive,r=+1 and if it negative,r=-1.

Now,COMING to the given question;

Y=-2/3X-4/3.

Here,the slope is negative. Hence,r=-1.

Therefore,the correlation coefficient between X and Y is -1.

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If the relationship between the two variables x and y is given by 2x + 3y + 4 = 0, then the value of the correlation coefficient between x and y is ____..​

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If the relationship between the two variables x and y is given by 2x + 3y + 4 = 0, then the value of the correlation coefficient between x and y is ____..