GDP is not a component of the HDI. The HDI is based on three dimensions: health (as measured by life expectancy), education (as measured by mean years of schooling and expected years of schooling), and standard of living (as measured by gross national income per capita).

The HDI is a dimensionless index ranging from 0 to 1, with 1 representing the highest possible level of human development.

According to the 2020 HDI report, Norway has the highest HDI in the world, with a score of 0.957.

According to the 2020 HDI report, Niger has the lowest HDI in the world, with a score of 0.354.

The average HDI of the world is 0.7, which indicates a high level of human development.

Life expectancy has the greatest weight in the HDI, accounting for one-third of the total score.

Per capita income has the least weight in the HDI, accounting for one-fifth of the total score.

The HDI is calculated as a weighted average of the three components, with life expectancy having a weight of one-third, education having a weight of one-third, and per capita income having a weight of one-fifth.

The formula for calculating the HDI is $$HDI = \frac{LE + EI + PCI}{3}$$, where LE is life expectancy, EI is education, and PCI is per capita income.

The three dimensions of the HDI are health, education, and standard of living.

The purpose of the HDI is to measure the overall development of a country, taking into account both economic and social factors.

The HDI was first introduced in 1990 by the United Nations Development Programme (UNDP).

The HDI was developed by Amartya Sen and Mahbub ul Haq.

The HDI is a measure of the MDGs, as it tracks progress towards achieving the goals.

The HDI is a measure of the SDGs, as it tracks progress towards achieving the goals.