6 Use the Counting Principle to calculate the size of sample space in each situation. Part A You roll a 6-sided number cube two times. Part B There are 25 students in your class. The teacher chooses 3 at random. Part C A restaurant sells 6 different types of sandwiches. You go to the restaurant 6 times and randomly choose a different sandwich each time. Part D You draw two balls from the number box and four balls from the letter box