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 mean for the linear function W = 2X + Y.
Definitions:
Critical Incident Stress Debriefing (CISD)
A structured process for helping individuals who have experienced a traumatic event to discuss their experiences and feelings, aimed at reducing the risk of post-traumatic stress disorder.
Stress Debriefing
A process of psychological intervention shortly after a traumatic event aimed at preventing stress-related symptoms and disorders.
Irrational Beliefs
Thoughts and beliefs that are not based on reason or logical thinking, often leading to negative emotional outcomes.
Cognitive
Relating to mental processes such as awareness, perception, reasoning, and judgment.
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