STATE	PROBABILITY	RETURN ON STOCK A	RETURN ON STOCK B
1	4%	49%	-41%
2	87%	35%	9%
3	4%	27%	32%
4	5%	42%	19%

i. Find the Expected Return on Stock A (3 marks)

ii. Find the Variance of the returns on Stock A (3 marks)

iii. Find the Standard Deviation of the returns on Stock A. (3 marks)

iv. Find the Expected Return on Stock B (3 marks)

v. Find the Variance of the returns on Stock B (3 marks)

vi. Find the Standard Deviation of the returns on Stock B (3 marks)

vii. Find the Covariance between the returns on Stock A and Stock B (4 marks)

viii. Find the Correlation Coefficient between the returns on Stock A and Stock B. (3 marks)

(b) Distinguish between weak form, semi-strong form and strong form stock market efficiency. (5 marks)