18. Use the information in Figure 2 below to answer questions 18 through to 22. The data in Figure 2 below has to do with the stocks of three of South Africa's biggest mobile network operators Calculate the approximate price relatives to two decimal places for the MTN and Vodacom stocks over the period in question. (4 marks) A. 0.71,0.67 B. 0.57,0.75 C. 0.75,0.77 D. 0.70,0.81 19. Calculate the approximate quantity relatives to two decimal places for the MTN and Cell C stocks over the period in question. (4 marks) A. 3.01,1.41 B. 1.03,4.11 C. 1.30,1.14 D. 0.03,4.00 20. Looking at the stock information in figure 2, what would you conclude about the South African Mobile Phone sector between 2008 and 2011? (4 marks) A. The market was very depressed between the period 2008-2011 as cellular stocks remained below 2008 prices through the period to 2011. B. The market was solid and prices were rising between 2008 and 2011 C. Prices fell steadily but investors remained hopeful that the market was going to rebound in the near to medium term D. The market crashed and plateaued between 2008 and 2011 21. Calculate approximately to 3 decimal places the composite price index for all three stock between 2008 and 2011. (4 marks) A. 1.24 B. 0.88 C. 0.780 D. 1.42 22. Calculate approximately to 3 decimal places the composite quantity index for all three stocks for the period 2008 to 2011. (4 marks) A. 1.322 B. 1.323 C. 1.223 D. 1.232 23. The numbers of tourists (in thousands) visiting Table Mountain in Cape Town per quarter, for three consecutive years from 2036 to 2038 are presented in Figure 2 below: Figure 2 Compute the actual values indicated by A,B,C and D in that order. (4 marks) A. 2569,560,996553,87103 B. 996553,2569,87103,560 C. 650,632699,18730,9562 D. 2695,650,633599,17830 24. If the general linear regression model is given by the equation: y=a+bx; considering the information obtained in Figure 2 above, compute the value of b. (4 marks) A. 210.185 B. 121.852 C. 21.850 D. 2.185 25. If the general linear regression model is given by the equation: y=a+bx; considering the information obtained in Figure 2 above, compute the value of a. (4 marks) A. 397.210 B. 973.102 C. 210.379 D. 237.021