Thread: can this formula be used?

Can this formula:



...be used for correlation coefficient, when in my exam paper I am given the vaules:


Sxy Sxx Syy??

Correlation coefficent is equal to:

Does that help you?

Originally Posted by colby2152

Correlation coefficent is equal to:

Does that help you?

well it does help, its just the forumla that i have posted above is the formula which i am used to using.

So could i use that formula in any question for correlation coefficient?

xx

Originally Posted by leaaa

well it does help, its just the forumla that i have posted above is the formula which i am used to using.

So could i use that formula in any question for correlation coefficient?

xx

Yes, you may use that formula. It is the same one as I provided, but in sum notation. You said that you only have the joint standard deviations though.