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## #1 2014-05-01 20:20:05

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,717

### Expectation #1

C wrote:

I have 3 random variables X,Y and Z, independent and each from the standard normal distribution N(0,1) what is the

A says) √2

B says) That is not even close...

C says) Darn good answer A, I am going to use it with your permission of course.

A says) Pay no attention to B, use it all you want.

D says) A is a swell guy and my hero.

E says) A makes me nauseous. His answer is totally wrong.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

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## #2 2014-05-02 00:39:00

ElainaVW
Member
Registered: 2013-04-29
Posts: 506

### Re: Expectation #1

hello

Last edited by ElainaVW (2014-05-02 00:39:20)

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## #3 2014-05-02 00:43:07

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,717

### Re: Expectation #1

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

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## #4 2014-05-02 00:44:13

ElainaVW
Member
Registered: 2013-04-29
Posts: 506

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## #5 2014-05-02 00:48:50

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,717

### Re: Expectation #1

Hi;

Yes, it is exactly what I have always strived for but fell short of, the perfect synthesis of hand methods and computer ones.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Offline

## #6 2014-05-02 00:53:47

ElainaVW
Member
Registered: 2013-04-29
Posts: 506

Offline

## #7 2014-05-02 00:58:09

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 103,717

### Re: Expectation #1

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Offline