Requirement 1:
(a)	The arithmetic average return of company X's stock is:
	(Click to select) 16.25% 15.86% 14.69% 10.53% 13.00%

(b)	The arithmetic average return of company Y's stock is:
	(Click to select) 20.25% 13.12% 16.20% 19.76% 18.31%

Requirement 2:
(a)	The historical variance of company X's stock returns is: (Do not round intermediate calculations.)
	(Click to select) 0.040250 0.050235 0.032602 0.040188 0.050313

(b)	The historical variance of company Y's stock returns is: (Do not round intermediate calculations.)
	(Click to select) 0.100225 0.105900 0.080180 0.084720 0.068623

Requirement 3:
(a)	The historical standard deviation of company X's stock returns is: (Do not round intermediate calculations.)
	(Click to select) 25.08% 22.41% 19.95% 20.06% 16.25%

(b)	The historical standard deviation of company Y's stock returns is: (Do not round intermediate calculations.)
	(Click to select) 36.38% 28.32% 31.66% 29.11% 23.58%

The table below shows historical annual returns for stocks of companies X and Y over recent years. Calculate the arithmetic average returns. In addition, calculate their historical variances, as well as their historical standard deviations. Requirement 1: (a) The arithmetic average return of company X's stock is: (b) The arithmetic average return of company Y 's stock is: Requirement 2: (a) The historical variance of company X's stock returns is: (Do not round intermediate (a) calculations.) (b) The historical variance of company Y's stock returns is: (Do not round intermediate