In probability, if P(A) = 0, then A is: MCQ with Answer and Explanation

Explanation:
CDR is heavily influenced by age structure; comparing a young population (low CDR) with an old one (high CDR) can misrepresent true mortality differences, necessitating age-standardized rates.

Explanation:
Mode = 3Median - 2Mean → 24 = 3×25 - 2Mean → 2Mean = 75 - 24 = 51 → Mean = 25.5.

Explanation:
Perinatal mortality reflects the quality of antenatal care, skilled attendance at birth, and immediate newborn care, making it a sensitive measure for evaluating maternal-child health programs.