Having a bit of trouble with this one: Any help will be appreciated.
Suppose you are going to draw 2 jellyfish, without replacement, from a tank that contains 5 mushroom jellyfish and 3 cannonball jellyfish. Find the probability that at least 1 cannonball jellyfish will be selected.
a. 5/15
b. 9/14
c. 15/28
d. 1