Answer:
1/2
Explanation:
If you look at the diagram, you can see that there are 36 samples in total.
One line contains 3 odd, and 3 even pairs. If there are 6 lines, 3*6 = 18.
So 18 samples are odd out of 36 in total. You can make this into 18/36 which is also equal too 1/2
Good luck!