In a standard deck of
A club or a face card? Is this event a union or an intersection?
How can the Addition Rule help you?
The Addition Rule is P(A or B) = P(A) + P(B) − P(A and B).
Remember a union is the cards that can be found in both events, where the intersection is the card they have in common.
P(club or face) = P(club) + P(face) − P(club and face)
Refer to the Math Notes box in Lesson 3.1.5 for more assistance.
A club and a face card? Is this event a union or an intersection?
Not a club and not a face card?
This question is asking for the complement of part (a).
A complement is all outcomes that are not part of the original set of outcomes.