This report provides a detailed analysis of investment options, focusing on the performance of three Australian stocks (BHP Billiton, Woolworths, and Commonwealth Bank of Australia) over a 10-year period. The analysis utilizes statistical tools such as average annual rate of return, geometric average rate of return, standard deviation, coefficient of variation, covariance, and correlation to assess risk and reward. The report further constructs and evaluates three different portfolios to identify diversified investment options, with a recommendation for Portfolio C as the most viable choice. The research methodology involves selecting stocks, calculating financial metrics, and creating portfolios to provide insights for investors seeking to improve their returns and manage risk effectively. The report includes an executive summary, introduction, research, analysis, recommendations, and conclusion, along with references and appendices containing supporting data and calculations.