The Adult literacy index (ALI) is a statistical measure used to determine how many adults can read and write in a certain area or nation. Adult literacy is one of the factors in measuring the Human Development Index (HDI) of each nation, along with life expectancy, education, and standard of living.
The equation for measuring the Adult literacy rate is:

• 

ALR = Adult literacy rate (ages 15 and older)

[edit] See also

• Human Development Index
• List of countries by literacy rate
• Literacy

[edit] External links

• Adult literacy rates of Great Britain

[edit] References