All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info
Home > Probability
Problems dealing with various probabilities, be it coin tossing or game winning.
Consider a 10 mile length of road with mile markers exactly every mile including 0 and 10. Starting at the 0 marker, you drive towards 10 and randomly stop at some point with a position "p" defined as (0 marker)<= p <=(10 marker).

Part 1 (teaser): - What is the expected value of the distance from "p" to the nearest mile marker?

Part 2 (more difficult): - Three mile markers, randomly selected, have been removed by vandals, but 0 and 10 remain. Same question as part 1.

Part 3: - Consider part 2, but markers 0 and 10 are also potentially part of the vandalism.
Does the answer change from part 2, and if so what is it?
(You have no problem knowing where to start your trip, even if marker 0 happens to be missing)

(No Solution Yet, 5 Comments) Submitted on 2017-08-30 by Kenny M   
Page 2 of 27   << prev next >>    
Difficulty: 3 of 5Same side story |
Posted on 2017-03-16 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 3 of 5Only real x counted |
Posted on 2017-03-01 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Areas ratio |
Posted on 2017-02-24 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Odds are ... | Rating: 3.00
Posted on 2017-02-14 by Ady TZIDON (No Solution Yet, 8 Comments)
Difficulty: 3 of 52nd grade math |
Posted on 2017-01-12 by Jer (No Solution Yet, 4 Comments)
Difficulty: 3 of 5A biased random walk |
Posted on 2016-12-01 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Dodecahedron Chance Determination |
Posted on 2016-10-20 by K Sengupta (No Solution Yet, 6 Comments)
Difficulty: 2 of 52 sums modulo 7 |
Posted on 2016-10-05 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Nonnegative Sum Nuance |
Posted on 2016-09-23 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Real roots from three dice |
Posted on 2016-09-20 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Unbiased and Biased Choice |
Posted on 2016-09-19 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Dice Roll Resolution |
Posted on 2016-09-08 by K Sengupta (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Random Chess Pieces Poser |
Posted on 2016-08-29 by K Sengupta (No Solution Yet, 6 Comments)
Difficulty: 3 of 5Eight Points |
Posted on 2016-08-24 by K Sengupta (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Pentagon and Acute Probability |
Posted on 2016-08-02 by K Sengupta (No Solution Yet, 1 Comments)
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information