William M. Briggs

Today, just one example, and the simplest kind, to show you that using regular regression, with its assumptions of "normality", can quickly lead to absurdities---absurdities which will pass unnoticed using…

Be sure to first read Statistical Significance Does Not Mean What You Think. Climate Temperature Trends then Regression Is Not What You Think. Climate And Other Examples, as this post…

Be sure to first read Statistical Significance Does Not Mean What You Think. Climate Temperature Trends, as this post is an extension of it. As yesterday: If y is some…

There are a subset of professional statisticians---defined as folks who have had formal training in the field given to them by other professionals---who feel that the field of statistics is…

First, and most strongly, probability need not have anything to do with data. For example, we can compute a value for the probability that "Matt wears a hat" given the…

I often use this example, last night given as homework: if you have a bottle of bourbon, one of scotch, and another of beer, how many ways can you pour…