Two dice are tossed (with 6 faces each) at the same time. Define the outcomes X1=’ result from dice #1’ and X2=’ result from dice #2’. Now, consider M= X1-X2 , where M is given by the difference between the outcomes. a) What is the probability that M is negative ? b) What is the probability that M is positive ? c) What is the probability that M=0 ? d) If X2=1 what is the probability that M=6 ? e) If M=1 what is the probability that X1=6 ?