If a fair coin marked 1 and 2, and a fair die are rolled together, what is a probability to have the sum even?
Ans is 1/2
Possible combination for the above question is
Probability = 10/12 = 5/6
Why is 2+6 and 6+2 etc. are considered as same in the above problem?
because the six can only come out on the die and the 2 on the fair coin...therefore, 6 has to be the die whether you roll the die first or second