<prompt> Which of the following is true about Human Development Index:Maternal mortality rateIMRLife expectancy- BirthLife expectancy- 1 year  <response>: Ans. c Life expectancy BirthRef: K. Park 23rd ed. 17PQLI Physical Quality of Life IndexHDI Human Development IndexLiteracy rateLiteracy rateInfant mortality rateIncomeLife expectancy at 1 yearLife expectancy birthRange: 0 and 100Range: 0 and 1Value in India: 650.547Also Know Range of correlation coefficient; 1 to 1 