Question

sendo A e b evento com P(A)=5/8, p(B)=1/4 a P(AuB)= 1/8, calcule P(AUB)​

Answer 1

p(aUb) = p(a)+p(b)-p(aub) = 5/8+1/4-1/8= 7/8 - 1/8 = 6/8 .

é isso??