Nine students lined up in some order and had their picture taken. One year later, the same students lined up again in random order and had their picture taken. Using simulation, find an approximate...

Nine students lined up in some order and had their picture taken. One year later, the same students lined up again in random order and had their picture taken. Using simulation, find an approximate probability that, the second time, no student was standing next to the one next to whom he or she was standing the previously.