If a = {1, 3, 5} and b = {1, 2, 3, 4, 5, 6} then aub
1) ø
2) {1,2,3,4,5,6}
3) {2,4,6}

AUB would be the second one

Step-by-step explanation:

union means all the elements of the mentioned sets, combined. However it is mandatory that you don't repeat the elements even if they are written twice

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.