1. Statistics
2. Descriptive Statistics
3. Quantative Analysis of Data
4. Dispersion and Spread of Data
5. Coefficient of Variation
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Part A The market portfolio is assumed to be composed of two securities, Investment X and Y as shown below. Determine based on the information given the Average return, Standard Deviation and Coefficient of Variation. Which is the better investment?

Year Return X Return Y
1997 16.5% 17.5%
1998 14.2% 13.2%
1999 13.5% 14.5%
2000 16.1% 15.1%
2001 12.2% 13.2%
2002 11.5% 10.5%

Part B A portfolio consists of five securities with following Beta and Proportions: What is the Beta of the portfolio?
Asset Beta Proportions
1 1.35 .1
2 1.12 .2
3 1.67 .3
4 1.04 .2
5 1.55 .2