Stock A and B have the following historical returns. assume a portfoloio of 50% of stock A and 50 % of stock B

CALCULATE THE AVERAGE RATE OF RETURN, VARIANCE, COVARIANCE, COORELARALTION COEEFICENT AND STANDARD DEVIATION OF THE PORTFOLIO

year	Stock A returns Ka	Stock B returns Kb
1997	10%	3 %
1998	18.5 %	21.29 %
1999	38.67%	44.25 %
2000	14.33 %	3.67 %
2001	33 %	28.3 %