Considering the chart below, what is the probability that if you select one person at random that they have committed a violent crime, given that they were between 20 and 40 years of age? 
Definitions:
Savant Syndrome
An uncommon scenario in which an individual with profound mental impairments exhibits specific skills greatly surpassing the norm.
General Intelligence
A theoretical measure of an individual's overall mental capability across diverse cognitive tasks.
Standardization
The process of establishing norms and uniform procedures to ensure consistency and comparability in the administration of tests or procedures.
Pretested Group
A group of individuals tested or assessed before being exposed to a specific treatment or condition in an experiment.
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