Problem 2. (5pts) We randomly interviewed 8 students and asked them how long it took to nd their rst fulltime job after graduation. We got their responses (in months) below: 1, 1, 1+, 1+, 2, 2, 2+, 2 +. Here '1+' means that the actual time is > 1 month but we don't know the exact value. With the KaplanMeier approach, can you calculate the survival function of the time to nding their rst fulltime jobs