Show work and explain please for lifesaver...

Over the past 5 months, Cloak, Dagger and the Market had the following monthly returns:

MONTH	Cloak	Dagger	Market
January	-.04	.08	-.02
February	.15	.25	.10
March	.21	.16	.05
April	.00	-.05	-.01
May	.18	.14	.10

A: Calculate the return and standard deviation for Cloak and Dagger. Assume the observations are the population rather than a sample.

B: Calculate the correlation (coefficient) between Cloak and Dagger.

C: Dagger has a beta of 1.53.You invest equal amounts in Cloak and Dagger.Find the return, beta and the variance of the portfolio.