official statistics
preferred label: آمار رسمی @fa
type: Concept
narrower: vital statistics

birth and death process
preferred label: فرایند زادومرگ @fa
type: Concept
related: vital statistics

vital statistics
related: birth and death process
related: polygon
related: sampling theory
broader: official statistics
preferred label: آمار حیاتی @fa
type: Concept

polygon
preferred label: چندضلعی @fa
type: Concept
related: vital statistics

sampling theory
preferred label: نظریه نمونه‌گیری @fa
type: Concept
related: vital statistics