**13. Correct. The answer is false.** The probability of producing** **LPG from reservoir A is equal to 100%
because propane and butane are the necessary hydrocarbons to produce LPG. In
probabilistic terms: P (LPG in reservoir A) = 1. Schaum's Outline presents this
result as a basic axiom of probability. The probability of producing LPG from
reservoir B is 0% because it does not contain either propane or butane. In
probabilistic terms, P (LPG in reservoir B) = 0.