6. On December 1, 2008, Peter, age 15, was killed by being trampled to death at a Taylor Swift concert. P, Peter's father, has brought a wrongful death action in D1, the owner of the Coliseum where the concert was held, and D2, the promoter of the concert. P's complaint alleges that the defendants were negligent in overselling general admission tickets and in failing to control the crowd of ticketholders waiting to get in and that the defendants' negligence caused Peter's death. At trial, P calls W to testify that she has been to 12 rock concerts at the Coliseum in the past year. She says that at every concert there was a mad scramble for general admission tickets, a press of people outside the doors until they opened a half-hour or so before the scheduled starting time of the concert, and once the doors opened a violent rush for the best seats and standing room. Should W's testimony be admitted