The probability distribution of the daily demand for a product is shown below. 
a.What is the expected number of units demanded per day?
b.Determine the variance and the standard deviation.
Definitions:
Physician
A medical professional who diagnoses and treats diseases, performs medical research, and advises on maintaining health.
Psychodynamic Theories
Theories that view personality with a focus on the unconscious and the importance of childhood experiences.
Psychoanalysis
A therapeutic approach developed by Freud, focusing on exploring unconscious motivations and conflicts as a method of treating psychological disorders.
Trait Theories
Theories in psychology that focus on identifying and classifying individual differences in behavior as stable traits.
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