Category Archives: Online Articles

Preview of Images for Bayes Theorem Articles

Regular readers know I post previews of images that I create for articles in other online publications. Here are two spreadsheets and two Venn diagrams for an upcoming series of articles in Decoded Science about Bayes’ Theorem.

(Added Oct. 30, 2015): Well, that didn’t take too long… almost a month to finish writing “Introduction to Bayesian Probability and Bayes Theorem“.

The First Four Images about Bayes’ Theorem

Do these images explain themselves?

Spreadsheet showing an example of Bayes Rule applied to Symptoms and a Test
“Bayes Rule Example of Symptoms and a Test” image (c) by Mike DeHaan

Between the text in the picture, plus the caption and “alt text”, do the images present a message?

Second spreadsheet showing Bayes Rule applied to a Screening Test and Diagnostic Test
“Bayes Rule with Screening Test and Diagnostic Test” image (c) by Mike DeHaan

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Venn Diagram where Hypothesis and Evidence have Similar Probabilities
“Venn Diagram where Hypothesis and Evidence have Similar Probabilities” image (c) by Mike DeHaan

Finally, do the colours catch your eye?

Venn Diagram with Unlikely Hypothesis and Likely Evidence
“Venn Diagram with Unlikely Hypothesis and Likely Evidence” image (c) by Mike DeHaan

Again, publicly publishing my images on my web site before another, helps establish my copyright to these works.

Thanks for reading this. Please peruse my previous articles at Decoded Science.

A Guide to the Yule-Simpson Paradox

My recent Decoded Science article, “Detecting or Avoiding the Yule-Simpson Paradox“, deals with a surprising puzzle that may occur when comparing two competitors under different conditions.

Chart of Simpson Reversal for Two Surgeons" image (c) by Mike DeHaan
Chart of Simpson Reversal for Two Surgeons” image (c) by Mike DeHaan

A Cut-and-Dried Example of a Yule-Simpson Paradox

The chart above compares the success rates of two fictional surgeons for scheduled versus emergency operations. Dr. alpha has a higher success rate in each situation; but Dr. beta‘s overall success rate is higher. That, my friends, is a Yule-Simpson Paradox, or Simpson Reversal.

My article explains the math of the Yule-Simpson Paradox, with some examples of how the situation may arise.

There’s a practical side, too, whether you’re a marketer planning an A/B experiment; a patient trying to decide between competing doctors or medical treatments; or a student weighing educational programs.

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Professional Writing by DeHaan Services

DeHaan Services writes web site or advertising copy for clients. Our skills are demonstrated in online articles in Decoded Science, Decoded Pregnancy, and DeHaan Fitness. That’s why we highlight these online articles on this blog page.

My Decoded Science articles often introduce and explain paradoxes or interesting branches of math. Looking to improve your math skills or to find help for your school courses? Consider online math tutorials.

To only see our Toronto events (for things to do in Toronto) or fitness articles, please click on the appropriate category in the “Categories” section at the bottom of the left-hand margin.

Thank you for reading my online article about the Yule-Simpson Paradox.

Is the Genetic Code just another Binary Code like ASCII?

My latest Decoded Science article, “Comparing the Genetic Code of DNA to Binary Code“, shows how our genome encodes information, but not quite in the same way as a computer code such as ASCII.

The Genetic Code from DNA to RNA to Amino Acids, copyright Mike DeHaan
The Genetic Code from DNA to RNA to Amino Acids, copyright Mike DeHaan

Topics in my Decoded Science Article on Genetic Code and Binary Code

Along the way, my article answers “what is DNA?” and the way our genome is copied from DNA, to RNA, and then to amino acids. That’s what this article’s image shows: the genetic code.

DNA testing shows the sequence of DNA in selected genes and chromosomes. The genetic sequence may help to reveal inherited medical conditions, identify or rule out crime suspects, or show your ethnic background through “ancestry DNA” that is common to your ancestors.

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My article in Decoded Science did not have room to explain all the features of ASCII code; but it is a common example of a binary code used by many computers. Nor does the article explain the detailed chemistry involved in processing DNA. However, I claim it’s a good introduction to how much information is stored in your genome, and well worth reading before you go for DNA testing. It also has some reference links for a lot more detail about DNA.

Professional Writing by DeHaan Services

DeHaan Services writes web site or advertising copy for clients. Our skills are demonstrated in online articles in Decoded Science, Decoded Pregnancy, and DeHaan Fitness. That’s why we highlight these online articles on this blog page.

My Blog of Writing usually includes writing tips while it promotes my online articles. Check the example for this topic in “The Genetic Code of DNA is not quite Binary Code“.

Thank you for reading my online articles about binary code and the genetic code.