The following table shows part of the probability distribution for the number of boats sold daily at Boats Unlimited. It is known that the average number of boats sold daily is 1.57. 
Compute the variance and the standard deviation for this probability distribution.
Definitions:
Phobia
an extreme or irrational fear of or aversion to something, significantly impacting an individual's ability to function normally in certain situations.
Psychodynamic Model
A psychological perspective that emphasizes unconscious processes and childhood experiences in shaping behaviors and personalities.
Anxiety
An emotion of anxiety or apprehension regarding an unpredictable result.
Generalized Anxiety Disorder
A chronic disorder characterized by excessive, long-lasting anxiety and worry about nonspecific life events, objects, and situations.
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