Are 42 boys and girls participating in an essay-writing competition. of the competitors, 21 are in seventh grade, 14 are in eighth grade, and 7 are in ninth grade. what is the probability of an eighth grader winning the competition? which simulation(s) can be used to represent this situation? 1.the probability is 1/3 . simulate this situation by rolling a 6-sided die, with odd numbers representing seventh graders and even numbers representing eighth graders. 2. the probability is 1/6 . simulate this situation by picking a card from a deck of cards, with hearts representing seventh graders, diamonds representing eighth graders, and spades representing ninth graders. 3. the probability is 1/3 . simulate this situation by spinning a spinner with six equal sections, with one section representing ninth graders, two sections representing eighth graders, and three sections representing seventh graders. 4. the probability is 1/6. simulate this situation by using a number generator with numbers from 1 to 6, with 1 through 3 representing seventh graders, 4 and 5 representing eighth graders, and 6 representing ninth graders.