What is the standard deviation of a portfolio's returns if the mean return is 15%, the variance of returns is 184, and there are three stocks in the portfolio?

In the problem, the given data is the mean and the variance. Now to solve this problem, we must remember that the formula for variance is:

Variance = s^2

Where s is equivalent to the standard deviation, therefore:

s = sqrt (Variance)

Calculating for the value of the standard deviation given Variance = 184:

s = sqrt  (184)

s = 13.56 %                          (ANSWER)

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