The prices of stock A and Stock B recorded over several months as follows. Stock A: 11 10 9 10 11 11 10 11 10 10 Stock B: 8 10 13 7 10 11 10 7 15 12 Where, The average price of stock A = 10.3 $ and Standard Deviation = 0.67 $ Which stock would you prefer to buy? And why? Comment on the results. Question 2 If the marks of a sample of 10 students in an exam of Finance from the Economic department are as follows: 56, 66, 71, 74, 65, 82, 62, 68, 74, 77 And the marks of another sample of 12 students in the same exam from the Business department are as follows: 36, 45, 45, 42, 42, 45, 44, 38, 36, 37, 43, 42 Where the variance of the marks of the Finance exam = 58.72 mark2 Which department is more homogenous in the marks of Finance, the Economic department or the Business department? Give the reason of your answer. Comment on the results