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

Home > Probability
Three of a Kind (Posted on 2003-11-19) Difficulty: 4 of 5
You have a standard pack of 52 playing cards. You then shuffle them and begin to draw out cards until you have three of a kind. What is the most likely number of cards drawn when this happens?

You then shuffle another pack of 52 playing cards into the pile. What happens to the expected number of cards now? (i.e. does it double / halve / stay the same?)

No Solution Yet Submitted by Lewis    
Rating: 4.4000 (10 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Some responses for SilverKnight,,,, | Comment 23 of 39 |
(In reply to Some responses for SilverKnight,,,, by Dan)

Dan, please go back and read my post AGAIN.

(1)
You wrote that:
52!/(50! * 2!) = (52*51)*2 = 5304
No, this is incorrect.
52!/(50! * 2!) = (52*51)/2 = 1326

And yes, Dan, I *do* think I can come up with that many different 2-card hands in a deck of 52.

(2)
Please forgive me for taking what you wrote LITERALLY. I simply thought that when you used the word 'only' that you meant 'only'. Silly me.

(3)
Did you take into account (I'm betting that you didn't...) the notion that you could get a straight or flush before you get your three of a kind? (The only reason I bring it up, is because you discounted getting a full house, in a previous post.)

--- SK
  Posted by SilverKnight on 2003-11-20 15:50:13

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 (0)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information