There have been 12 Monday OS X updates, 9 on Tuesday, 10 on Wednesday, 7 on Thursday, 4 on Friday, and 1 on Saturday (the very first one - 10.0.1).
I guess based on the historical pattern the odds decrease as we get later in the week.![]()
Or do they actually increase? As we get later in the week, we get closer to the start of a new one...