1. The table below gives the monthly percentage price change for two market indices:

Month	Sensex Index	Hang Seng Index
1	5%	5%
2	9%	-3%
3	-5%	7%
4	4%	2%
5	12%	-5%
6	-9%	7%

Compute the average monthly rate of return and standard deviation for each of above indexes. Also compute the covariance and correlation coefficient between the rates of return of the two indexes. Calculate the expected return and standard deviation of a portfolio consisting of 50% in Sensex and 50% in Hang Seng Index.