Source: https://www.xkcd.com/2118/
All posts tagged xkcd
How To Annoy a Statistician
Posted by John Quintanilla on March 6, 2020
https://meangreenmath.com/2020/03/06/how-to-annoy-a-statistician/
An Interview with Randall Munroe
FiveThirtyEight.com interviewed Randall Munroe, the author of the wildly popular xkcd webcomic. I recommend the whole interview, but I thought that the follow few paragraphs were exceptionally insightful.
One thing that bothers me is large numbers presented without context. We’re always seeing things like, “This canal project will require 1.15 million tons of concrete.” It’s presented as if it should mean something to us, as if numbers are inherently informative. So we feel like if we don’t understand it, it’s our fault.
But I have only a vague idea of what one ton of concrete looks like. I have no idea what to think of a million tons. Is that a lot? It’s clearly supposed to sound like a lot, because it has the word “million” in it. But on the other hand, “The Adventures of Pluto Nash” made $7 million at the box office, and it was one of the biggest flops in movie history.
It can be more useful to look for context. Is concrete a surprisingly large share of the project’s budget? Is the project going to consume more concrete than the rest of the state combined? Will this project use up a large share of the world’s concrete? Or is this just easy, space-filling trivia? A good rule of thumb might be, “If I added a zero to this number, would the sentence containing it mean something different to me?” If the answer is “no,” maybe the number has no business being in the sentence in the first place.
Posted by John Quintanilla on August 10, 2016
https://meangreenmath.com/2016/08/10/an-interview-with-randall-munroe/
Conditional Statements
Source: http://xkcd.com/1652/
Posted by John Quintanilla on June 13, 2016
https://meangreenmath.com/2016/06/13/conditional-statements/
Fun With Permutations and Asimov’s Three Laws of Robotics
I’m not a big fan of science fiction, but I know enough to know that Isaac Asimov was one of the great science fiction novelists of the 20th century. The following was written by him in the October 1980 issue of The Magazine of Fantasy and Science Fiction and was reprinted in his book Counting the Eons, which was published in 1983. (I’m now holding the battered and torn pages of my copy of this book; I devoured Asimov’s musings on mathematics and science when I was young.)
Robotics has become a sufficiently well development technology to warrant articles and books on its history and I have watched this in amazement, and in some disbelief, because I invented it.
No, not the technology, the word.
In October 1941, I wrote a robot story entitled “Runaround,” first published in the March 1942 issue of Astounding Science Fiction, in which I recited, for the first time, my Three Laws of Robotics. Here they are:
- A robot must not injure a human being or, through inaction, allow a human being to come to harm.
- A robot must obey the orders give it by human beings except where those orders would conflict with the First Law.
- A robot must protect its own existence, except where such protection would conflict with the First or Second Laws.
Clearly, the order in which the Three Laws of Robotics matters. Shuffling the order leads to 
Source: http://www.xkcd.com/1613/
Posted by John Quintanilla on May 1, 2016
https://meangreenmath.com/2016/05/01/fun-with-permutations-and-asimovs-three-laws-of-robotics/
Interpreting statistical significance
Source: http://www.xkcd.com/1478/
Posted by John Quintanilla on October 20, 2015
https://meangreenmath.com/2015/10/20/interpreting-statistical-significance/
Interesting calculus problems
Posted by John Quintanilla on June 15, 2015
https://meangreenmath.com/2015/06/15/interesting-calculus-problems/
Scatter diagram
Source: http://www.xkcd.com/1242/
Posted by John Quintanilla on May 7, 2015
https://meangreenmath.com/2015/05/07/scatter-diagram/
Polar plot
Source: http://www.xkcd.com/1230/
Posted by John Quintanilla on April 24, 2015
https://meangreenmath.com/2015/04/24/polar-plot/
Student t distribution
Source: http://www.xkcd.com/1347/
Posted by John Quintanilla on April 17, 2015
https://meangreenmath.com/2015/04/17/student-t-distribution/
Integration by parts
Source: http://www.xkcd.com/1201/
Posted by John Quintanilla on March 21, 2015
https://meangreenmath.com/2015/03/21/integration-by-parts/
