Lesson: Applying the OR Rule

Comment on Applying the OR Rule

Please What did you say at 0.25, the reason why we can't use our original prob. formular
gmat-admin's picture

At 0:25, I say "We can't use the original probability formula, because there are no countable outcomes."

Hi Brent,

When you say or, do you mean union or intersection?

Many thanks
gmat-admin's picture

Hi Bartal,

A OR B can be thought of as the UNION of A and B

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