7. Refer to the coin scenario described in Problem 4. a. Let A be the event "exactly two heads. Find P(A). b. Let B be the event wat most one head." Find P(B). c. Let C be the event "at least two heads." Find P(C). d. Are the events A and B mutually exclusive? Find P(A or B). e. Are the events A and C mutually exclusive? Find P(A or C). 4. Three coins are dropped on a table. a. List all possible outcomes in the sample space. b. Find the probability associated with each outcome