medium · GMAT Quant
A financial analyst reviews monthly performance for two investment strategies: Strategy 1 (10 months, mean return 8%) and Strategy 2 (30 months, mean return 4%). If the total sum of squares (mathrmSST) across all 40 months is 400
What is the within-strategy sum of squares (mathrmSSW)?
- 280
- 120
- 520
- 384
- 400
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