The table shows life expectancy in years of the G8 countries (Datablog, Guardian.co.uk, July 8 2009) .Treating the data as a population, calculate the z-score for life expectancy in Russia. 
Definitions:
Personal Fable
A form of adolescent egocentrism, involving a belief in the uniqueness of one's own feelings and immortality.
Formal Operations
The last phase of cognitive development according to Piaget's theory, marked by the capacity for abstract, logical, and systematic thinking.
Introspection
The examination or observation of one's own mental and emotional processes.
Egocentrism
A cognitive perspective where an individual overly focuses on their own view and fails to understand that others may have different perspectives.
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