A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0,1,2,3,4,or 5 days last month. 
What is the variance of the number of days absent?
Definitions:
Shallow Processing
Cognitive processing of stimuli at a basic level based on their superficial attributes rather than their deeper meaning.
Implicit Memory
Memory that facilitates the performance of tasks through the influence of prior experiences, all the while the individual remains unaware of these influences.
Episodic Memory
A type of long-term memory that involves the recollection of specific events, situations, and experiences.
Semantic Memory
A form of enduring memory that allows for the recollection of words, ideas, or digits, crucial for language comprehension and utilization.
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