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Q5. (a) Table 5.1 gives information on the time x, in nearest hours, spent in a week for studies and the FHMM1034 final assessment (FA) marks, y , obtained by 10 UTAR foundation students in the October 2020 trimester. Table 5.1 Hours 10 25 12 8 13 6 22 15 20 18 spent FA 48 80 52 50 56 38 82 60 74 62 marks (i) Calculate the values of Sxx , Sry and Sxy . (5 marks) (ii) Determine the value of coefficient of determination, 72 . Interpret the value of r. (3 marks) (iii) Find the linear regression equation in the form of y = a + bx . (4 marks) (iv) A student spent 30 hours per week in his studies. Estimate the FA mark obtained by him. Comment on the reliability of the estimation