Out of 100 customers, 52 buy a shirt, 44 buy a tie and 30 buy both. Determine the probability that a customer who has bought a shirt will also buy a tie?

ANS = .58.

So the end it states SHIRT AND TIE?? so it's a multiplication probability?

I was using P(A and B) = P(A) + P(B) - P(A and B)

.52 + .44 - (.3) = .66

BUT MY guess that is wrong. I think it's a two step process. BUT have no clue.

Any help would be apprecaited. Thanks

Jo