All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Probability
Lying gambler (Posted on 2010-10-21) Difficulty: 1 of 5
A gambler throws a die and tells the score. He tells truth 3/4 of the times that he speaks and randomly lies 1/4 of the times that he speaks. If he says it is a six, what is the probability that he actually got a six?

No Solution Yet Submitted by Vishal Gupta    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
Randomly interpreting | Comment 2 of 6 |
It appears that the probability of 3/4 is as close as we can get, since the concept of "randomly lies" is not defined, and is not clearly a complete disjunction with "he tells the truth..."  Perhaps it means that he speaks randomly 1/4 of the time (in which case he will sometimes speak an accurate statement by inadvertence). Perhaps it means that he deliberately lies 1/4 of the time.  What is our probability of deciding (correctly) what the question means? 
  Posted by ed bottemiller on 2010-10-21 16:31:30
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information