#### henryneo

##### New Member
Hi guys i need help badly. We were given this to solve in my first RA class and i have no idea how to begin. Please this is the first time i'm encountering regression analysis and I'm absolutely lost.

Question 1: How can you determine the reliability of multiple correlation coefficients?

Question 2: For any two random variables x and y, show that the correlation coefficient p(x,y)<= 1

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#### intomarketing

##### New Member
Hi guys i need help badly. We were given this to solve in my first RA class and i have no idea how to begin. Please this is the first time i'm encountering regression analysis and I'm absolutely lost.

Question 1: How can you determine the reliability of multiple correlation coefficients?

Question 2: For any two random variables x and y, show that the correlation coefficient p(x,y)<= 1

HI.

For question 1 I think it is a matter of looking at the standard errors of the coefficients?

for 2, i don't know how to prove it, but it must be between -1 and 1 where either extreme represents perfect correlation

#### Dragan

##### Super Moderator
Hi guys i need help badly. We were given this to solve in my first RA class and i have no idea how to begin. Please this is the first time i'm encountering regression analysis and I'm absolutely lost.

Question 1: How can you determine the reliability of multiple correlation coefficients?

Question 2: For any two random variables x and y, show that the correlation coefficient p(x,y)<= 1