As an investment analyst, you have just been provided information on the results of two companies' shares which are Company X and Company Y.

The information on the expected returns and standard deviations are shown in the table below. Assume that the correlation coefficient between the two companies' shares is +0.30.

Calculate the expected return and standard deviation for the following portfolios:

a) 100% in X

b) 75% in X and 25% in Y

c) 50% in X and 50% in Y

d) 25% in X and 75% in Y

e) 100% in Y

Table:

X Y
Expected Return (%) 15 35
Standard Deviation (%) 20 40