Are the two events in each scenario mutually exclusive or not? Explain (no mark will be given without a correct explanation).

a) Rolling a sum of 5 or a sum of 9 with a pair of 6-sided dice, numbered 1 to 6.

b) Drawing a heart or drawing a Jack from a standard deck of 52 playing cards.

c) Rolling a sum that is even or greater than 5 with a pair of 4-sided dice, numbered 1 to 4

d) Walking to school or getting a ride to school.