An investment returns +30% in Year 1 and -20% in Year 2. The geometric mean annual return is closest to:
Explanation: Geometric = [(1.30)(0.80)]^(1/2) - 1 = (1.04)^(0.5) - 1 = 1.0198 - 1 = 1.98%. Actually: (1.30)(0.80) = 1.04, sqrt(1.04) = 1.0198, so 1.98%. Wait let me recalculate: sqrt(1.04) = 1.01980, so 1.98% is answer B. Let me fix: correct answer is index 1.
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