a. in a question on correlation the value of ris 0.64 and it P.E=0.13274. what was the value of n. b. a student calculates the value of r as +0.5 when the value of n is 16 and comments the r is significant .is he correct? c. with help of following data find out r and sigma y : Byx =0.85 , Bxy=0.89 and sigma x= 3
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