Hacker News new | ask | show | jobs
by AmsterErdo 380 days ago
I think I don't get it... since it's binary, it can always be guessed in two attempts?
4 comments

It took me 10 tries...
The classics are classics for a reason
That's pretty good, considering they give you 110 tries
+1
I _think_ it's humorous!
Yes. You can still try to get it in one attempt.
Odds in one attempt: 1 in 32

Odds in two attempts: 1 in 1

Your odds add up to more than 1.
Probabilities sum to 1.0. Odds don't sum.
Odds of getting it within 2 attempts is 1. Odds of getting it on exactly the second attempt is 31/32
Ooops:

You won!

You guessed 01111 in 4 attempts!

Well yeah and a fair coin has P(heads) == P(tails) == 0 for someone who eats it.
I’m glad I figured that out after my first attempt. I feel smart lol.