## Welcome to BrainDen.com - Brain Teasers Forum

 Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account. As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends. Of course, you can also enjoy our collection of amazing optical illusions and cool math games. If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top. If you have a website, we would appreciate a little link to BrainDen. Thanks and enjoy the Den :-)
Guest Message by DevFuse

1 votes

# How many tickets?

Best Answer nakulendu, 11 March 2013 - 03:33 PM

Spoiler for try my luck

Go to the full post

13 replies to this topic

### #1 bonanova

bonanova

bonanova

• Moderator
• 6161 posts
• Gender:Male
• Location:New York

Posted 11 March 2013 - 10:52 AM

Suppose n tickets numbered 1-n are in a box, and you draw one of them

You don't know how many tickets are in the box, but you are asked to estimate how many there are.

Your ticket has the number p on it.

What estimate of n has the highest likelihood of being correct?

• 0

Vidi vici veni.

### #2 Krishna Kutty

Krishna Kutty

Junior Member

• Members
• 32 posts
• Gender:Female
• Location:India

Posted 11 March 2013 - 03:05 PM

Spoiler for

• 0

### #3 bonanova

bonanova

bonanova

• Moderator
• 6161 posts
• Gender:Male
• Location:New York

Posted 11 March 2013 - 03:11 PM

Spoiler for

Since you don't know the value of n, but are asked to estimate it, you don't know that p and n are different.

• 0

Vidi vici veni.

### #4 nakulendu

nakulendu

Junior Member

• Members
• 29 posts

Posted 11 March 2013 - 03:33 PM   Best Answer

Spoiler for try my luck

• 2

### #5 soop

soop

Advanced Member

• Members
• 211 posts

Posted 11 March 2013 - 04:16 PM

Spoiler for rrgghh, trying to get my head around this.

• 0

### #6 dark_magician_92

dark_magician_92

Advanced Member

• Members
• 382 posts

Posted 11 March 2013 - 06:08 PM

Suppose n tickets numbered 1-n are in a box, and you draw one of them

You don't know how many tickets are in the box, but you are asked to estimate how many there are.

Your ticket has the number p on it.

What estimate of n has the highest likelihood of being correct?

Spoiler for i think

• 0

### #7 bushindo

bushindo

Senior Member

• VIP
• 721 posts
• Gender:Male
• Location:Los Angeles, CA

Posted 11 March 2013 - 10:42 PM

Suppose n tickets numbered 1-n are in a box, and you draw one of them

You don't know how many tickets are in the box, but you are asked to estimate how many there are.

Your ticket has the number p on it.

What estimate of n has the highest likelihood of being correct?

It seems like this problem is dependent upon what is a reasonable a priori distribution for N.

Spoiler for

• 0

### #8 bushindo

bushindo

Senior Member

• VIP
• 721 posts
• Gender:Male
• Location:Los Angeles, CA

Posted 11 March 2013 - 10:46 PM

Suppose n tickets numbered 1-n are in a box, and you draw one of them
You don't know how many tickets are in the box, but you are asked to estimate how many there are.
Your ticket has the number p on it.

What estimate of n has the highest likelihood of being correct?

It seems like this problem is dependent upon what is a reasonable a priori distribution for N.
Spoiler for

Oh wait, the answer is much simpler than that. Turns out this is the easiest bonanova puzzle I have ever seen =)
Spoiler for

• 0

### #9 bonanova

bonanova

bonanova

• Moderator
• 6161 posts
• Gender:Male
• Location:New York

Posted 12 March 2013 - 12:39 AM

Suppose n tickets numbered 1-n are in a box, and you draw one of them
You don't know how many tickets are in the box, but you are asked to estimate how many there are.
Your ticket has the number p on it.

What estimate of n has the highest likelihood of being correct?

It seems like this problem is dependent upon what is a reasonable a priori distribution for N.
Spoiler for

Oh wait, the answer is much simpler than that. Turns out this is the easiest bonanova puzzle I have ever seen =)
Spoiler for

LOL

That may be the first and only time I use LOL in this forum.

I'm not that clever. Really.

But I love it. It's a better puzzle than the one I intended.

Honorable mention.

.

• 1

Vidi vici veni.

### #10 bonanova

bonanova

bonanova

• Moderator
• 6161 posts
• Gender:Male
• Location:New York

Posted 12 March 2013 - 12:48 AM

Spoiler for try my luck

Suppose n tickets numbered 1-n are in a box, and you draw one of them

You don't know how many tickets are in the box, but you are asked to estimate how many there are.

Your ticket has the number p on it.

What estimate of n has the highest likelihood of being correct?

Spoiler for i think

You are both correct.

nakulendu posted first, so I marked his answer as the solution.

• 0

Vidi vici veni.

#### 0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users