What are the expected return and standard deviation of the
possible returns below?
Economy | Probability | Return |
Good | 0.60 | 25% |
Bad | 0.40 | -15% |
Please show work and formulas used
Economy | INVESTMENT (P) | RETURN (Y) | (P * Y ) | P * (Y -Average Return of Y)^2 |
Good | 60% | 25 | 15.00 | 153.60 |
Bad | 40% | -15 | -6.00 | 230.40 |
TOTAL | 9.00 | 384.00 | ||
Expected Return = | (P * Y) | |||
9.00% | ||||
VARIANCE = | P * (Y -Average Return of Y)^2 | |||
384.0000 | ||||
Standard Deviation = | Square root of (P * (Y -Average Return of Y)^2) | |||
Square root of 384 | ||||
19.60 |
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