Find out the correlation co-efficient if the co-variance between Project X and Project Y is –0.2854 and the variance of the two projects is respectively 6.24 and 2.16. If the co-variance between the...

Find out the correlation co-efficient if the co-variance between Project X and Project Y is –0.2854 and the variance of the two projects is respectively 6.24 and 2.16.

If the co-variance between the returns from Security X and from the market in general is 504 and the total risk in the market portfolio expressed in terms of standard deviation is 20, find the beta.