medium · GMAT Quant
A retail chain evaluates employee sales productivity across three store locations: Branch A (10 employees), Branch B (15 employees), and Branch C (25 employees). The combined total sum of squares (mathrmSST) across all 50 employees is 32,000, and the between-branch sum of squares (mathrmSSB) is 14,500. If the within-branch sums of squared deviations for Branch A and Branch B are 5,000 and 6,500, respectively
What is the within-branch sum of squared deviations for Branch C?
- 6,000
- 17,500
- 3,000
- 10,500
- 20,500
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