A six-sided, unfair (weighted) die has the following probability distribution. 
Find the probability of rolling a 3 or less.
Definitions:
Conscientiousness
A trait suggesting someone's skillfulness in organizing, being dependable, and a high level of duty consciousness.
Monozygotic Twins
Twins that are genetically identical because they were formed from a single fertilized egg that split into two.
Genetic Profile
A unique code of genes that an individual inherits from their parents, which can determine certain characteristics and susceptibility to diseases.
Ventral Striatum
A part of the brain involved in the reward system, playing a key role in motivation, emotion, and reinforcement learning.
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