Mean radius is the average measurement from the true center of the group (white) to the center of each shot. More simply, it's the average "miss distance." Group size, not mean radius, has been the ...

Now, let's tackle the task of finding the indicated z-score shown in a graph. This usually involves being given an area under the standard normal curve and needing to find the corresponding z-score.

CEO of Paul M. Wendee & Associates, LLC; Publisher of the Intrinsic Value Wealth Report Newsletter; Founder of the Value Driver Institute. In my opinion, reversion to the mean is one of the most ...