What is the probability of randomly selecting a student who earned an A, given that the student studied?

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I think its 6/7 but I have no idea if it's independent or dependent

You can test if two events are independent by checking if \[P(A \text{ and } B) = P(A)\cdot P(B)\]

I'm still trying to make sense of the table, the column headers are a bit confusing...

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