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Methodology - Life Expectancy

Using the data from the UN about life expectancy of men and women a 50/50 weighted average has been calculated. The average life expectancy is 66.4 years with a standard deviation of 12.0 years. The lowest life expectancy is 32.9 years (Swaziland) while the highest one is 81.8 years (Japan).

With the calculated mean and standard deviation an assumed normal distribution has been calculated. The probability of a value equals the points, i.e. a probability of 67% equals 67 points.

Source

United Nations:  last update 1 August 2006

 
 

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