Public Procurement Best Practices
Q: What is the primary goal of quality assurance in procurement?
Did You Know?
True. The variance of b₂ is σ²_u / Σ(X_i - X̄)². As n grows, Σ(X_i - X̄)² tends to increase (more data points, more variation), so the variance decreases. This reflects the law of large numbers: more data yields more precise estimates.
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