You're lost in the national park of Bandrika. Tourists comprise 2/3 of the visitors to park and provide the correct answer to requests for directions with probability 3/4. If you ask a native badrikan for directions the answer is always false.
A) You ask passer-by for directions to the exit. What is the probability that the directions are correct?
B) Compute the probability that the passer-by was a tourist given that the directions were correct.
C) It turns out the directions are NOT correct. Calculate teh probability that the passer-by was a tourist.