Marginal probability mass function

Description:

• Joint probability mass function
• A table of probablility distribution for joint
• | i \ j | 0 | 1 | 2 | | --- | ----------- | ----------- | ----------- | | 0 | P(X=0, Y=0) | P(X=0, Y=1) | P(X=0, Y=2) | | 1 | P(X=1, Y=0) | P(X=1, Y=1) | P(X=1, Y=2) | | 2 | P(X=2, Y=0) | P(X=2, Y=1) | P(X=2, Y=2) |