Answer
Vernier caliper measure nearest to 0.01 mm.
If the correct reading of the experiment is 9.62 mm.
But you misread it and listed it as 8.62 mm.
This is Clearly the case of mistake in Accuracy.
Because the reading is wrong and answer is not accurate hence it is mistake in accuracy.
To Judge weather the reading is precise or not we should have a range where the result is acceptable but in the question no range is given. So, we cannot comment on precision.