6. Find the beta of a security whose covariance with the market is \0.88 and the variance of the market is \0.85. The variance of the security is \0.65. 7. Find the beta of a security whose covariance with the market is \0.88 and the standard deviation of the market is \0.09. 8. Find the beta of a security whose standard deviation is \10 and that of the market is \9. The correlation between the market and the security is 0.65 . 9. Find the expected return of a portfolio whose standard deviation is \12. The return generated by the market is \15 and the prevailing risk free rate of return is \5. The standard deviation of the market is \8. 10. Find the expected return of a security whose beta is 1.2 . The return generated by the market is \15 and the prevailing risk free rate of return is \5