Monty Hall

Learning and science

probability simulation

SHOW HN2020

15points
24comments
#1,964of 3,028 in 2020
Top 65%of 2020 by points

How HN took it

MixedNo clear lean

1 positive, 3 neutral or asking, 0 mixed, 3 critical, out of 7 comments about the project. Thread score -0.23.

Execution: 0 for, 2 againstIdea: 1 for, 0 againstDesign: 0 for, 1 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Simulation is a good way to learn the counterintuitive probability result.

    From 2 comments
    • Totally! Simulation is a great way of learning this stuff. I spent a lot of time in R doing similar things over the years.
      madrox on HN
    • Try increasing the number of doors and your brain will (slowly) accept it. "One million doors" as described in another comment [1] is a good way to visualise it. [1]…
      abiogenesis on HN

Objections

  • Colors and statistics display are confusing; the stats should show the switch win ratio.

    From 1 comment
    • Some constructive feedback: - The language randomly seems to switch to something else ("porta") - Even if you're faintly familiar with the problem (like me), it's hard to gauge…
      s9w on HN
  • Text has a Portuguese word ('porta') mixed into the English interface.

    From 2 comments
    • Some constructive feedback: - The language randomly seems to switch to something else ("porta") - Even if you're faintly familiar with the problem (like me), it's hard to gauge…
      s9w on HN
    • Porta mesma door in Portuguese. Author is probably pt/pt or pt/br
      mping on HN

Requests

  • Add a version starting with many doors that reduces each round.

    From 1 comment
    • One thing that helps IMO here is to exaggerate the problem: Start with one million doors. Choose one. Now have Monty open 999,998 of them. Do you switch doors? I believe it works…
      jancsika on HN

Questions

  • Why does switching win more often than staying with the first choice?

    From 2 comments
    • Ah, the good ol' Monty Hall problem...this problem (and .999...=1) have caused a ton of arguments between me and my not-quite-as-mathematical friends. I guess the fact that it's…
      tombert on HN
    • It's a common error, but I don't know if it's most in my experience. I've seen plenty of people fully understand the problem (for some value of fully understand) and insist it…
      wyattpeak on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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