Question 4 If the following information were obtained Not yet answered Marked out of 1 P Flag question n=5, sum of y=30, sum of x=20, sum of (xy)=128, sum of (x^2)=90, sum of (y^2)=190 Then the coefficient of correlation is Select one: A 1.2 B.- 1.2 C(-8.007) D. 0.8 Question 5 If the following regression line is fitted to sample data Not yet answered Marked out of 1 ya - 1.1+0.8% P Flag question Then the slope of the regression line is Select one: A. - 1.11 B. 0.8 C.0.0 D. 1.2