Using the Laplace Principle of Indifference to know the uncertainty, solve the following; In a tour to outside, we have 40 times food trip, 25 times clothing and 15 times grocery visits to a same place. If we extract to plan a random visit, what is the probability of having 1. A food trip only? 2. A clothing with half the chance of food but not grocery? 3. A grocery with no food and clothing