THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
The following table displays the joint probability distribution of two discrete random variables X and Y. 
-Compute the covariance between X and Y.
Definitions:
Bioecological Model
A theoretical model outlining how biological and environmental factors interact over time to influence human development.
Early Childhood Teacher
A professional specializing in the education and developmental needs of young children, typically from birth to age 8.
Contexts
The circumstances, background, or settings that influence and give meaning to events, concepts, or phenomena.
Family Systems Theory
A theory that views the family as an emotional unit and uses systems thinking to describe the complex interactions within the unit.
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