Editing 12: Poisson
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{{comic | {{comic | ||
| number = 12 | | number = 12 | ||
− | | date = | + | | date = December 22, 2005<!-- Per http://wayback.archive.org/web/*/http:////www.xkcd.com//Poisson.jpg - at least that was the first crawl date --><!--DO NOT ADD 2006-01-01 - this was NOT the actual post date of the comic, but merely the default date in the xkcd database. These comics do not have a known post date--> |
| title = Poisson | | title = Poisson | ||
| image = poisson.jpg | | image = poisson.jpg | ||
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==Explanation== | ==Explanation== | ||
− | [[Cueball]] expresses himself as a {{w|Poisson distribution}} | + | [[Cueball]] expresses himself as a {{w|Poisson distribution}}. |
− | + | A Poisson distribution is a distribution that shows the probability of a given number of events occurring in a fixed interval of time or space. The X axis typically represents the "number of events" while the Y axis is a decimal representing the probability (i.e. 0.5 for 50% probability) a given number of events will occur in that fixed interval of time or space. It is commonly represented by a bar graph or a scatter graph (sometimes with a line connection to show a trend, even though there is no actual value for non-integers). | |
− | + | What's important to note for this comic is that this distribution only has data points on non-negative integers and is not continuous through decimal numbers or (as the image text tells us) negative numbers because events can't occur 0.3 of a time, or -2 times. | |
+ | |||
+ | After implying that the concept of a person being a mathematical distribution is irrational, [[Black Hat]] suggests he is "less than zero". Since the Poisson distribution doesn't exist or has no value at negative values, Cueball either leaves or disappears magically. | ||
+ | |||
+ | Hence, the punchline is the same as the title text: Cueball doesn't exist to Black Hat anymore, because he has a value less than zero. Another one of the early comics where Randall explains the joke in the title text. | ||
+ | |||
+ | Also, because a Poisson Distribution is memoryless, the figure claiming to be the distribution may simply be repeating the fact as a reference to this. | ||
==Transcript== | ==Transcript== | ||
− | :[Cueball | + | :[Cueball talking to Black Hat] |
:Cueball: I'm a poisson distribution! | :Cueball: I'm a poisson distribution! | ||
− | |||
:Cueball: Still a Poisson distribution! | :Cueball: Still a Poisson distribution! | ||
− | :Black Hat: | + | :Black Hat: What the hell, man. Why do you keep saying that? |
− | |||
:Cueball: Because I'm totally a poisson distribution. | :Cueball: Because I'm totally a poisson distribution. | ||
:Black Hat: I'm less than zero. | :Black Hat: I'm less than zero. | ||
− | :[Cueball is gone | + | :[Cueball is gone; Black Hat is whistling.] |
==Trivia== | ==Trivia== | ||
− | * This comic | + | *This comic was posted on [[xkcd]] when the [http://www.escologics.com web site] opened on Sunday the 1st of January 2006. |
− | * This | + | **It was posted along [[:Category:First day on xkcd|with the 41 comics]] posted before that on [[LiveJournal]]. |
+ | **But this comic, as well as [[5: Blown apart]] also released that day, were never posted on LiveJournal. | ||
+ | *The release date is given from [http://wayback.archive.org/web/*/http:////www.xkcd.com//Poisson.jpg - wayback.archive]. At least the 22nd of December was the first crawl date. | ||
+ | **This also explains that it was "released" on a Thursday. | ||
+ | **On xkcd, it was released for the first time to the public on Sunday the 1st of January 2006. | ||
+ | *One of the original drawings drawn on [[:Category:Checkered paper|checkered paper]]. | ||
+ | *[[Randall]] was still experimenting with character design, as Cueball has a face in the first two frames. | ||
+ | *This is the first appearance of Black Hat on xkcd. | ||
+ | **However Black Hat appeared in [[24: Godel, Escher, Kurt Halsey]], which was released almost 3 months before this one on LiveJournal. | ||
− | {{ | + | {{Comic discussion}} |
− | [[Category:First day on xkcd | + | [[Category:First day on xkcd]] |
[[Category:Checkered paper]] | [[Category:Checkered paper]] | ||
[[Category:Comics featuring Cueball]] | [[Category:Comics featuring Cueball]] | ||
[[Category:Comics featuring Black Hat]] | [[Category:Comics featuring Black Hat]] | ||
− | [[Category: | + | [[Category:Math]] |
− |