Question

Please help? If P(a)=2/3, P(b)=4/5, and p(a intersect b)=3/5, what is p(a union b)?

Answer 1

P(A U B) =P(A)+P(B)-P(A intersection B)

Answer 2

so it is 13/15

Answer 3

yes

Answer 4

thank you so much :D :))