The Impact of Innumeracy

By the time we reach voting age, almost all Americans have at least a high school education. That means we have been exposed to numerous math courses, and hopefully passed them. But that does not mean we have a good sense of numbers. Innumeracy in the modern sense...

Statistics. What language is that?

It seems that a many intro statistics students struggle with the “language” of stats. I am working on a micro-course on that topic and I ran across this article: Statistics for people in a hurry. It is well worth the read the 8-minute read.
The Big Picture of Statistics

The Big Picture of Statistics

The process of statistics starts when we identify what group we want to study or learn something about. We call this group the population. Alt-text: Pictorial representation of a population Note that the word “population” here (and in the entire course) is not just...

Paired samples are not always obvious

Although we often think of paired samples as being the same person (thing) in a “before” and “after” treatment setting, there are some other important types of paired samples. One kind are “natural” pairings, such as spouses, siblings, and especially twins. This type...