Question

What are the expected return and standard deviation of the possible returns below? Economy Probability Return...

What are the expected return and standard deviation of the possible returns below?

Economy Probability Return
Good 0.60 25%
Bad 0.40 -15%

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Answer #1
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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