The rates of return of stock A and the market portfolio for the 12 months are given below:

Month	1	2	3	4	5	6	7	8	9
Stock A (%)	10	15	18	14	16	16	18	4	4
Market Portfolio (%)	12	14	13	10	9	13	14	7	1

1. Compute the average return of stock A and the market. (1mks)
2. Determine the variance of the return of stock A and the market. (1mks)
3. Find the covariance between the return of stock A and the market portfolio. (1mks)
4. Estimate the beta factor for stock A. (1mks)