Question

what is HDI and what is its main function

Answer 1

HDI is a composite statistic of literacy rate, net attendance ratio, life expectancy etc.

Answer 2

here your answer mark as brainlist.

Definition: The Human Development Index (HDI) is a statistical tool used to measure a country's overall achievement in its social and economic dimensions. The social and economic dimensions of a country are based on the health of people, their level of education attainment and their standard of living.