Two fair coins are tossed, and the events given below are defined. Complete parts a through c. A: (Observe at least one head.) B: (Observe exactly one head.) a. Draw a Venn diagram for the experiment, showing events A and B. Assign probabilities to the sample points. OA. O D. S b. Find P(A), P(B), and P(An B). S S P(A)= P(B)= P(An B) = (Simplify your answer.) (Simplify your answer.) (Simplify your answer.) c. Use the formula for conditional probability to find P(A|B) and P(BIA). Verify your answer by inspecting the Venn diagram and using the concept of reduced sample spaces. P(A|B) (Simplify your answer.) P(BIA)=(Simplify your answer.)