Upon arrival at a hospital's emergency room, patients are categorized according to their condition as critical, serious, or stable. In the past year:
• 11% of the emergency room patients were critical
• 33% of the emergency room patients were serious
• the rest of the emergency room patients were stable
• 36% of the critical patients died
15% of the serious patients died and
• 3% of the stable patients died.
Find the probability that the patient who survived was categorized as serious upon arrival.