For the given pair of events a and b, complete parts (a) and (b) below. a: a marble is randomly selected from a bag containing 15 marbles consisting of 1 red, 9 blue, and 5 green marbles. the selected marble is one of the green marbles. b: a second marble is selected and it is the 1 red marble in the bag. a. determine whether events a and b are independent or dependent. (if two events are technically dependent but can be treated as if they are independent according to the 5% guideline, consider them to be independent.) b. find p(a and b), the probability that events a and b both occur.