Imagine that you are eating at a restaurant with your friends. You and your best friend, Arabella, are seated at opposite ends of a large table, and
Arabella orders first. The probability that both you and Arabella end up ordering vegetable soup is in simpler terms, if the probability that you
order vegetable soup is P(A), and the probability that Arabella orders vegetable soup is PB), then is the probability of A and 8, or P(A and B).
The probability that you order vegetable soup given that you know that Arabella has ordered its P(
A B) = What is the probability that
Arabella orders vegetable soup?