The following table shows part of the probability distribution for a random variable x.
a.The mean of the above distribution is known to be 1.8 .
b.Compute the variance and the standard deviation for the above probability distribution.
Definitions:
Claustrophobia
An anxiety disorder characterized by an irrational fear of being enclosed in a small space or room and having no escape.
Triskaidekaphobia
The fear of the number thirteen, often associated with superstition or cultural beliefs about bad luck.
Prefrontal Cortex
The part of the brain located at the front of the frontal lobe, involved in complex behaviors such as planning, decision making, and moderating social behavior.
Obsessive-compulsive Disorder
A mental disorder characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions).
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