What it means, exactly, escapes me. The link was provided in a post to the Yahoo group. It seems to be legitimate because I found the same page by searching the State Bar site.
Pass Stats Summary
I can't begin to describe the way this whole process is messing with my head.
Update: I have my doubts about the legitimacy of the PDF at the above link, but I'm not going to delete it (yet) for a couple of reasons.
One reason is that it doesn't really mean anything. At least, not right now. Because even after the results are released the statistics are merely a curiosity. There's nothing in them that will help or hinder my preparation for the next exam.
The second reason is that it seems very odd to me that they would release any type of statistics before they release the results. I don't think that's happened before. The MBE results are known because that's in the hands of the NCBE, and the CA Bar doesn't have any control there, although I suspect they could exert some influence if it was important enough to them.
The upshot of all of this is that the only statistic that matters to me is my overall score. Because frankly, anything else, whether it be stats, opinions, guesses, or each and every one of the model answers released by the experts; no matter how well informed or intentioned it is, it's simply background noise compared to the Mother Of All Scores.