The expected value, standard deviation of returns, and coefficient of variation for asset A are .

9.35 percent, 2.76 percent, and 0.295, respectively

Explanation:

Expected value;

This is a weighted average of the different possibilities.

= (0.25 * 5%) + (0.55 * 10%) + (0.20 * 13%)

= 9.35%

Standard Deviation:

First calculate Variance

Variance = (0.25 * (5 - 9.35)²) + (0.55 * (10 - 9.35)²) + (0.20 * (13 - 9.35)²)

= 7.62%

Standard deviation = √7.62%

= 2.76%

Coefficient of Variation

= Standard deviation/ Expected value

= 2.76%/9.35%

=0.295

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