The table below shows the number of absences, x, in a Statistics course and the final exam grade, y, for 8 students. 4 3 3 7 y 95 90 90 55 70 80 85 54 Necessary calculations: You may need to find the following quantities to answer the following questions: E- xi =?, E-1 x =?, E-Yi =?, E-1 y? =?, and E-1xiyi =?. Draw a scatter diagram for the variables x and y and hence indicate what type of relationship exist between them. (i) (ii) Find the sample correlation coefficient and interpret your result.