Mr. Akbar has OMR 35,000 and Ms. Arwa has OMR 40,000. They come to you for investment advice on the basis of the following investment alternatives: -

Sl. No	Securities	Securities return
1	Equity	12.5%
2	Preference shares	10%
3	Government Bonds	6%
4	Bank deposits	4.5%
5	Debenture	8%
6	Mutual Fund	9%

Calculate Variance, Standard Deviation, Covariance and Coefficient of Variance on each item in the proposed investment portfolio.