Mr. Ali aged 65 years and Mr. Suliman aged 25 years comes to you for investment advice. Mr. Mohammed has OMR 50,000 and Mr. Javed has OMR 25,000. Investment alternatives available are as below:- Reliability %5 securities Equity Preference share Government bonds Debenture Bank deposit return %15 %12 %8 %13 %3.5 %15 %10 %30 %20 As an investment consultant you are required to advice both the investor in which securities to invest their surplus money and also find the Expected Return, Variance, Standard Deviation, Covariance and Coefficient of Variance their portfolio after one year and provide valuable information to Mohammed and Javeed