Patient: What is the probability of success in undergoing a bypass surgery?
Doctor: 100%!!
Patient: But how can you be so sure of acheiving 100% success?
Doctor: On the day of convocation, my professor told me that when you practise medicine chances of failure will be 99% and success 1%. I have already attended 99 patients(failed to cure them) and you are the 100th!!
Patient: ????????