Summation; Pre-cal; linear regression HELP PLEASE!?

Emmy

New member
Hey, I really need help with math. I am trying to do linear regression. My n value = 40, ?x= 131.5, and ?y= 3,000. How do I find ?xy, ?x^2, and ?y^2?

Please, any help would be really appreciated!

Thanks in advance! xxxx
 
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