Two customers enter a store. Independently, they make decisions to purchase or not to purchase.The following diagrams shows how the outcomes can occur and combine with red bolding of sequence Customer 1 does not purchase and Customer 2 does not purchase

If the event is the number of purchases, 3 events are possible: 0 purchase, 1 purchase, and 2 purchases

Which one rule applies to the sequence of independent outcomes of Customer 1 and Customer 2?

-General multiplication rue: P(A and B) =P(A) x P(B IA)

-Simple addition rule: P(A or B) = P(A) +P(B)

-Simple multiplication rule: P(A and B) =P(A)*P(B)

-General addition rule: P(A or B) +P(A)+P(B)- P(A and B)