In a moderately skewed distribution, the empirical relationship is Mode ≈ 3×Median - 2×Mean. If Mean=60 and Median=58, Mode is approximately: MCQ with Answer and Explanation

Explanation:
Subtracting P(A ∩ B) corrects for the fact that outcomes in the intersection are counted twice when adding P(A) and P(B), ensuring accurate probability calculation for the union.

Explanation:
Factor reversal test checks if the product of a price index and its corresponding quantity index equals the value index (Σp₁q₁/Σp₀q₀), ensuring consistency between price and quantity measurements.

Explanation:
Maternal deaths are relatively rare; using a base of 100,000 live births yields manageable numbers (e.g., 100-500) instead of tiny decimals (0.001-0.005), enhancing readability and comparison.