Salutations!
Probability means occurrence of chance.
The arrow will land in a a green or white area = 4/8 =
The arrow will land in a yellow or black area = 3/8
The arrow will land in a green or black area = 3/8
The arrow will land in a yellow or green area = 5/8
The arrow landing in a yellow or green area is most likely to occur.
Hope I helped (:
Have a great day!