Calculating Life Expectancy Index (LEI)
The Life Expectancy Index (LEI) is a key component of the Human Development Index (HDI). It assesses a country's performance relative to the minimum and maximum observed values for life expectancy.
HDI Life Expectancy Formula
The formula to calculate the LEI is:
LEI = \(\frac{\text{Actual Life Expectancy} - \text{Minimum Life Expectancy}}{\text{Maximum Life Expectancy} - \text{Minimum Life Expectancy}}\)
Data for Country A
- Actual Life Expectancy = 64 years
- Minimum Possible Life Expectancy = 20 years
- Maximum Possible Life Expectancy = 86 years
Step-by-Step Calculation
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Substitute values: Plug the given data into the LEI formula.
LEI = \( \frac{64 - 20}{86 - 20} \)
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Simplify numerator and denominator: Perform the subtractions.
LEI = \( \frac{44}{66} \)
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Reduce the fraction: Simplify the fraction \( \frac{44}{66} \) by dividing both numbers by their greatest common divisor (22).
LEI = \( \frac{2}{3} \)
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Convert to decimal: Calculate the decimal value.
LEI \( \approx \) 0.667
The calculated Life Expectancy Index for Country A is approximately 0.667.
Important Questions from Population Studies
- Consider the following data for a country:
Population in 0-14 years of age – 391,558,367
Population between 15–64 years of age – 856,076,200
Population above 65 years of age – 71,943,390
What shall be the dependency ratio of this country? - Which one among the following was used for measuring economic status of households, in the National Family Health Survey-III (NFHS-III) ?
- Frontline health workers are employed to record the births and deaths in countries which have made slow progress in the development of a comprehensive vital registration system. This approach is known as
- While calculating the 'total dependency ratio', which one of the following is used in the denominator?
As per the United Nations definition of a vital events registration system, 'vital events' include which of the following?
1. Foetal deaths
2. School admissions
3. Legal separations
4. College graduations
Select the correct answer using the code given below.
