THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
The following table displays the joint probability distribution of two discrete random variables X and Y. 
-Determine the marginal probability distribution for Y.
Definitions:
Illusion of Motion
A perceptual phenomenon where static images appear to be moving due to specific visual effects or construction.
Neon Sign
A lighting display made of glass tubes that have been filled with neon or other gases and glow when electrified.
Bowling Alley
A facility equipped with lanes for bowling, where players roll a ball to knock down pins.
Binocular Disparity
The slight difference in images seen by each eye, which is crucial for depth perception.
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