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You invest 41% of your money in Stock Y and the rest in Stock Z. The standard deviation of Stock Y's annual returns is 52%
You invest 41% of your money in Stock Y and the rest in Stock Z. The standard deviation of Stock Y's annual returns is 52% and the standard deviation of Stock Z's annual returns is 46%. The standard deviation of the portfolio's annual returns is 42%. By how many percentage points did diversification reduce your risk in this case?
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