Final answer:
The Human Development Index (HDI) is based on three essential elements: long and healthy life, knowledge, and standard of living.
Step-by-step explanation:
The Human Development Index (HDI) is based on three essential elements of human life, which are:
- Long and healthy life: This dimension is measured by life expectancy at birth. It reflects the overall health conditions and healthcare quality of a country.
- Knowledge: This dimension is measured by indicators such as literacy rate and years of education. It represents the educational attainment and literacy levels of the population.
- Standard of living: This dimension is measured by gross national income (GNI) per capita adjusted for purchasing power parity (PPP). It reflects the economic well-being and living standards of the population.