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pandasarecute53
03.11.2020 •
Business
There is a 20% chance we will get a 16% return, a 30% chance of getting a 12% return, a 40% chance of getting a 8% return, and a 10% chance of getting an 4% return. The standard deviation for the above investment would be:
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Ответ:
SD = 0.03666 or 3.666%
Explanation:
To calculate the standard deviation of the investment, we must first calculate the expected or mean return of the investment. The expected or mean return can be calculated as follows,
r = pA * rA + pB * rB + ... + pN * rN
Where,
pA, pB, ... represents the probability of return A, return B and so onr = 0.2 * 0.16 + 0.3 * 0.12 + 0.4 * 0.08 + 0.1 * 0.04
r = 0.104 or 10.4%
The formula to calculate the standard deviation of a stock/investment is as follows,
SD = √pA * (rA - r)² + pB * (rB - r)² + ... + pN * (rN - r)²
SD = √0.2 * (0.16 - 0.104)² + 0.3 * (0.12 - 0.104)² + 0.4 * (0.08 - 0.104)² + 0.1 * (0.04 - 0.104)²
SD = 0.03666 or 3.666%
Ответ:
is d
Explanation: