Stats question 15
The annual returns, in percentages, on stocks A and B for three possible states of the economy are given in the table below.
Economy State | Probability | StockA | StockB |
Good | 0.5 | 40 | 20 |
Average | 0.3 | 20 | 40 |
Bad | 0.2 | 10 | 8 |
If one invested in StockA, what would be the standard deviation of the percentage return? Place your answer, in percent rounded to 1 decimal place, in the blank. For example, a standard deviation of 10.39 percent would be reported as 10.4. Do not use a percent sign. [removed]
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