An investor invested $10,000 into an account five years ago. Today, the account value is $18,682. What is the investor's annual rate of return on a continuously compounded basis?
ln(18,682/10,000) = 0.6250/5 = 12.50%
Or: (18,682/10,000)1/5 = 1.133143 ln(1.133143) = 12.4995%
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