Bayesian Probability I

Because of Bayes law, which of the following statements is true?

50 XP

Information about what type of plant something is can help tell us whether or not it lives outdoors.
The probability that a plant lives outdoors, given that it is a tree is equivalent to the probability that it is a tree, given that it lives outdoors.
We can calculate the probability that a plant is a succulent based on only marginal probailities.