URGENT I WILL UPVOTE

(Suggested time:10 minutes; Difficulty level: Very Easy) (9 marks) Using the following returns,

Year	Returns
	X	Y
1	8%	2%
2	10%	4%
3	11%	3%
4	-14%	4%
5	-3%	3%
6	23%	6%

Required:

1. (6 marks) Calculate the arithmetic average returns, the variances, and the standard deviations for X and Y.
2. (3 marks) Calculate the arithmetic average return, variance, and standard deviation for a portfolio that consists of 45% stock X and 55% stock Y.