Paragraph: A JEE aspirant estimates that she will be successful with an 80 % chance if she studies 10 hours per day, with a 60 % chance if she studies 7 hours per day and with a 40 % chance if she studies 4 hours per day. She further believes that she will study 10 hours, 7 hours and 4 hours per day with probabilities 0.1,0.2 and 0.7 respectively. Question: Given that she does not achieve success, the chance she stud