how to calculate the overall "AVG" score of memorization, understanding and application tasks

[tonywang-sh]

As shown in LawBench paper, according to the one-shot and zero-shot scores for the memorization, understanding and application in Table 27 and 31, how to calculate the overall "AVG" score? is it the average of the three tasks? but it is not correct from the Table 27 and 31.

[SP-FA]

Hello, I find this is the weighted average. That is, Overall = Mem / 10 + Understanding / 2 + Application / 2.5