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O CWS Apartment | X GroupWise X Home Content X Question 11 - Wk X *Course Hero X G Use Excel's AVEDI X + X C https://ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252FIms... Sign in Wk 2 - Practice: Wk 2 Exercises [due Day 5] @ Saved Help Save & Exit Submit Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question 11 Analysis of investment portfolio returns over a 20-year period showed the statistics below. Click here for the Excel Data File 2 points (a) Calculate and compare the coefficients of variation. (Round your answers to 2 decimal places.) Mean Standard Coefficient of Investment Return Deviation Variation Venture funds (adjusted) 19.2 14.0 All common stocks 15.6 14.0 % Real estate 11.5 16.8 Federal short-term paper 6.7 1.9 (b) Why would we use a coefficient of variation, and why not just compare the standard deviations? Standard deviation can only be compared when the variables have different units of measure. The standard deviations are an absolute, not relative, measure of dispersion. The standard deviations are an "absolute" not relative measure of dispersion. It is best to use the CV when comparing across variables that have different means Mc Graw Hill Type here to search P 9 W 2:17 PM X 6/1/2021