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:
Occupation
A job or profession, typically one that requires specific training or skills.
Education Level
The highest degree or level of schooling completed by an individual, often considered in demographic studies and analyses.
Reward
An incentive or benefit given to recognize someone's effort, achievement, or contribution.
Acknowledge Support
Involves recognizing and expressing gratitude for the assistance or encouragement received from others.
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