8. What is the probability that none of the heart-transplant patients in a sample of 20 survive the operation? Leave your answer in decimal format (DO NOT CONVERT TO A PERCENT). Round to 5 decimal places. (Hint: if n=20 and none survive then x=?) 9. What is the probability that between 15 and 17 heart-transplant patients in a sample of 20 survive the operation? (Hint: this is a cumulative probability in which you are going to have to add three probabilities together.) Leave your answer in decimal format (DO NOT CONVERT TO A PERCENT). Round to 5 decimal places. 10.What is the probability that two or more heart-transplant patients from this sample of 20 survive the operation? .Leave your answer in decimal format (DO NOT CONVERT TO A PERCENT). Round to 5 decimal places