Stacy uses a spinner with six equal sections numbered 2,2,3,4,5, and 6 to play a game. Stacy spins the pointer 120 times and records the results. The pointer lands 30 times on a section numbered 2, 19 times on 3, 25 times on 4, 29 times on 5, and 17 times on 6. What is the theoretical probability of landing on an even number?