The beta distribution is highly flexible distribution and applies to many situations and environments. The beta distribution applies well when there are percentages. The upcoming New Jersey U.S. Se
Rick Wicklin on the SAS blog made a post today on how to tell if a sequence of coin flips were random. I figured it was only fair to port the SAS IML code over to R. Just like Rick Wick
I had someone ask me the other day how to take a scatterplot and draw something other than a straight line through the graph using Excel. Yes, it can be done in Excel and it’s really quite
There are many kinds of intervals in statistics. To name a few of the common intervals: confidence intervals, prediction intervals, credible intervals, and tolerance intervals. Each are usefu
Whenever I go to the grocery store it always seems to be a lesson in statistics. I go get the things I need to buy and then I try to select the checkout register that will decrease the amount of
As it stands right now Cory Booker has a very good chance of winning the New Jersey Special U.S. Senate election on October 16 to replace Frank Lautenberg and fill the remainder of his term for the
I was listening to Science Friday from Sep 6th. and one of the discussions by Ira Flatow was on the well known Monty Hall Problem. This problem has been hashed out many times and in fact I was fi
It is the eve of the New York City Democratic mayoral primary election. This is a simple follow-up on my post from last Friday as I was curious how the final pre-Election Day polling was going to
The New York City mayoral Democratic primary election is taking place this coming Tuesday (Sep. 10th) and there are several candidates in the running. Bill de Blasio is the front runner and is expe
The Beta distribution (and more generally the Dirichlet) are probably my favorite distributions. However, sometimes only limited information is available when trying set up the distribution. Fo