Live data from Hacker News

Seeing Theory: A visual introduction to probability and statistics (2017)

seeing-theory.brown.edu

1–10 of 21 posts

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#2
Glad to see this once more.

Some Hacker News Discussions of this:

1. https://news.ycombinator.com/item?id=13735714

2. https://news.ycombinator.com/item?id=13760353

I wish they'd cover the sample space/parameter space distinction "harder", as it seems key to the numerous philosophical divides in the foundations of statistics & probability theory, and it seems like a very good candidate for colorful & animated visualization.

Also, note that the classic coin flipping example used there right in the beginning serves as an extremely bad & misleading analogy, see here for why:

https://econ.ucsb.edu/~doug/240a/Coin%20Flip.htm

I wish we'd stop using it in Stats & Physics 101, or at least add huge disclaimers to it, something like "Coins don't actually behave this way, not even mathematically idealized ones".

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#3
I looked up the Victor Powell visualization they cite and it's quite a bit more in-depth then the version they have:

http://setosa.io/conditional/

But seriously, all of these interactive visualizations are amazing. I wish they had this kind of stuff when I was an undergrad. I remember trying to plot the beta distribution for different alpha and beta parameters in MATLAB trying to get an intuition for it; just dragging the sliders around on the prior and watching it update as each data point comes in is a million times more accessible.

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#4

Glad to see this once more. Some Hacker News Discussions of this: 1. https://news.ycombinator.com/item?id=13735714 2. https://news.ycombinator.com/item?id=13760353 I wish they'd cover the sample space/parameter space distinction "harder", as it seems key to the numerous philosophical divides in the foundations of statistics & probability theory, and it seems like a very good candidate for colorful & animated visualiz…

I saw Persi Diaconis lecture on coin flips and shuffling cards once. Very interesting guy.

What metaphor for a Bernoulli trial do you prefer?

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#6
post #4

Glad to see this once more. Some Hacker News Discussions of this: 1. https://news.ycombinator.com/item?id=13735714 2. https://news.ycombinator.com/item?id=13760353 I wish they'd cover the sample space/parameter space distinction "harder", as it seems key to the numerous philosophical divides in the foundations of statistics & probability theory, and it seems like a very good candidate for colorful & animated visualiz…

I saw Persi Diaconis lecture on coin flips and shuffling cards once. Very interesting guy. What metaphor for a Bernoulli trial do you prefer?

Lecture 16 in this Discrete Probability pdf[1] covers how Diaconis and his students decrypted some prison ciphertext brought to them

[1] http://www.cs.cmu.edu/~odonnell/papers/probability-and-compu...

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#7
post #4

Earlier quoted context omitted.

I saw Persi Diaconis lecture on coin flips and shuffling cards once. Very interesting guy. What metaphor for a Bernoulli trial do you prefer?

Lecture 16 in this Discrete Probability pdf[1] covers how Diaconis and his students decrypted some prison ciphertext brought to them [1] http://www.cs.cmu.edu/~odonnell/papers/probability-and-compu...

I found the original account by Diaconis, with more detail:

"The Markov Chain Monte Carlo Revolution" (it's the first example in the paper)

https://math.uchicago.edu/~shmuel/Network-course-readings/MC...

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#8

Glad to see this once more. Some Hacker News Discussions of this: 1. https://news.ycombinator.com/item?id=13735714 2. https://news.ycombinator.com/item?id=13760353 I wish they'd cover the sample space/parameter space distinction "harder", as it seems key to the numerous philosophical divides in the foundations of statistics & probability theory, and it seems like a very good candidate for colorful & animated visualiz…

Your ucsb link describes an unfair coin flipping protocol, and not the fair protocol commonly used in practice. In particular, it provides a "strategy" at the end to generate an unfair toss (which requires, e.g., that you be both the flipper and the chooser). Other studies, such as the famous You can load a die, bit you can't bias a coin investigate fair flipping protocols and argue that you cannot, in fact, bias a coin:

https://www.stat.columbia.edu/~gelman/research/published/dic...

I have some blog posts on developing biased coins and dice, and the results show that any coin with a measurable bias is quite obviously not fair:

https://izbicki.me/blog/how-to-create-an-unfair-coin-and-pro...

whereas you can undetectably bias dice at home with just a bit of water:

https://izbicki.me/blog/how-to-cheat-at-settlers-of-catan-by...

Re: Seeing Theory: A visual introduction to probability and statistics (2017)

#10
post #3

I looked up the Victor Powell visualization they cite and it's quite a bit more in-depth then the version they have: http://setosa.io/conditional/ But seriously, all of these interactive visualizations are amazing. I wish they had this kind of stuff when I was an undergrad. I remember trying to plot the beta distribution for different alpha and beta parameters in MATLAB trying to get an intuition for it; just draggin…

Sometimes a good analogy can take the place of a visualization [1], albeit I did imagine a distribution getting more concentrated.

[1] http://varianceexplained.org/statistics/beta_distribution_an...

Post reply on HN