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## #176 2012-11-25 01:10:11

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #177 2013-03-18 21:01:00

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

bobbym wrote:

Hmmmm.

You have 4 boxes. You can toss balls one at a time to the boxes until any one of them has 3 balls in it, and then you stop.
The tosses are independent, and each bin is equally likely to be hit. It's impossible to not make it in a bin on any given toss.
What is the expected number of tosses so that 1 bin has 3 balls in it?

See you in a bit.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #178 2013-03-18 21:17:37

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #179 2013-03-18 21:20:36

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

I'm not sure what you mean...

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #180 2013-03-18 21:29:52

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

Hmmmm, number 10 in the dice.pdf. Does that mean anything to you?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #181 2013-03-18 21:56:56

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

Yes, I know the problem. But I am not sure I understand what you are trying to say...

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #182 2013-03-18 21:57:55

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

I posed that to Matt for that very reason!

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #183 2013-03-18 22:20:08

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

What reason?

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #184 2013-03-18 22:21:07

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

I gave him that problem because I needed an answer to the very problem you just solved.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #185 2013-03-18 22:38:30

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

Uh-huh! How did you solve that problem?

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #186 2013-03-18 22:46:03

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

I just counted them. But now I would try to use your idea from the problem #10.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #187 2013-03-18 22:49:47

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

I already got it working for more bins.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #188 2013-03-18 23:00:36

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

I know that.

I have been waiting for you Obi Wan...

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #189 2013-03-19 04:29:45

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

...

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #190 2013-03-19 07:10:43

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

Hmmm. Thee dots...

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #191 2013-03-19 07:15:37

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

bobbym wrote:

I know that.

I have been waiting for you Obi Wan...

I am not sure what you meant by this.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #192 2013-03-19 07:18:47

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

It means I have been waiting for you to solve this problem. His solution to #10 gave no insight into how to do it other than what I already knew.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #193 2013-03-19 08:31:02

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

That is great. If only we had a better form for that...

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #194 2013-03-19 08:41:06

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

You mean a form that would make math types happy?

It already is in a nice form for a CAS. Allows us to compute some big numbers.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #195 2013-03-19 08:42:42

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

I'm not sure how large it can go...

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #196 2013-03-19 08:44:59

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

I have not looked at it for very large ones but it is doing much larger ones than was possible before.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #197 2013-03-19 10:48:25

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

Well, it is certainly better than his method!

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #198 2013-03-19 13:23:19

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

Yes, his method is kind of clumsy and brute force like.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #199 2013-03-20 00:36:20

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,030

### Re: Expectation

Yes. I like mine better.

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

## #200 2013-03-20 01:01:08

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,456

### Re: Expectation

Well, how does it feel to come up with a solution like that?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

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