A review. We have sales data from two campaigns, A and B, data in which we choose (as a premise) to quantify our uncertainty with normal distributions. We assume the…

The joke is old and hoary and so well known that I risk the reader's ire for repeating it. But it contains a damning truth. Most academic statistical studies are…

(I'm assuming you have been reading previous posts. If not, do so.) We still want this:      (1) Pr (Distance > 1 meter | normal with m and s specified)…

Let's make sure we grasped yesterday's lesson. Emails and comments suggest we have not. These concepts are hardest for those who have only had classical training. We want to know…

Today is the quietest day, a time when all is still, a moment when nary a voice is raised and, quite suddenly, appointments are remembered, people have to be seen,…

In the real, physical class we learned to count yesterday. Elementary combinatorics, I mean. Figured out what "n!" and "n choose k" and the like meant and how that married…

As might have been obvious from yesterday, the truth, falsity, or the somewhere-in-betweenness of any conclusion-hypothesis-proposition can only be assessed with reference to a list of assumptions, premises, data. That…

Truth exists. Therefore, so does falsity. That truth exists is one of the many things we know to be true based on no external evidence. Naturally there are a very…