You roll a fair die once and record the face-up number, if the number is smaller than or equal to 3, you roll again and record that number as well. (To be clear if the first roll is less than or equal to 3 you record two numbers, otherwise you record one number) a) Write out the sample space for this experiment. How many elements are there? b) Write out the event that you roll the same number twice. How many elements are there? c) Write out the event that total sum of all the numbers you roll is a 6 or 8.