An analyst has developed the following probability distribution for the rate of return for a common stock.

Scenario Probability Rate of Return

1 0.29 17 %

2 0.50 7 %

3 0.21 15 %

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a. Calculate the expected rate of return. (Round intermediate calculations to at least 4 decimal places. Round your answer to 2 decimal places.)

b. Calculate the variance and the standard deviation of this probability distribution. (Use the percentage values for your calculations (for example 10% not 0.10). Round intermediate calculations to at least 4 decimal places. Enter your answer as a percentage rounded to 2 decimal places.)

Variance %2

Standard deviation %

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