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Find the (a) expected return, (b) standard deviation and (c) coefficient of variation for these investments A and B. RA Prob.

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Answer #1

Expected Return = 0.40 * 0.20 + 0.30 * 0.10 + 0.30 * (-0.02)
Expected Return = 0.104 or 10.4%

Variance = 0.40 * (0.20 - 0.104)^2 + 0.30 * (0.10 - 0.104)^2 + 0.30 * (-0.02 - 0.104)^2
Variance = 0.008304

Standard Deviation = (0.008304)^(1/2)
Standard Deviation = 0.091 or 9.1%

Coefficient of Variation = Standard Deviation / Expected Return
Coefficient of Variation = 0.091 / 0.104
Coefficient of Variation = 0.88

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