How many solutions are there to the system of the equations?
2 answers:
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From the definition of conditional probability,
and by the law of total probability,
In other words, each cell in the grid left of and above the total column and row represents the joint probabilities (e.g.
). So,
and by the law of total probability,
In other words, each cell in the grid left of and above the total column and row represents the joint probabilities (e.g.