it have 2 part. thank you

9. Jason has designed a game where if you roll a prime number with two six-sided dice, you receive twice the amount of your roll, but if you roll a composite number (not prime), you must pay the value of the roll. Recall that a prime number is a number that is only divisible by 1 or itself. For example, 5 is a prime number because it is only divisible by 1 and 5. The number 6 is not a prime number because it is not only divisible by 1 and 6, but can also be divided by 2 and 3. m er is a) What is the expected value per roll? (5 marks) b) Is this game fair? Explain. (1 mark)