Correct

八九不离十

/ bā jiǔ bù lí shí /
Strokes

Definition

pretty close/very near/about right

Example

Definition

pretty close; very near; about right; not far off/out/wrong

1
cāi
de
jiǔshí
八九不离十
  

Your guess isn't far out.

2
Cāi
jiǔshí
八九不离十

make a very close guess