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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,418

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.

What is the right answer?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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

ElainaVW
Member
Registered: 2013-04-29
Posts: 270

Re: Expectation #1

hello smile

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

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,418

Re: Expectation #1

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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

ElainaVW
Member
Registered: 2013-04-29
Posts: 270

Re: Expectation #1

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,418

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.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

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

ElainaVW
Member
Registered: 2013-04-29
Posts: 270

Re: Expectation #1

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,418

Re: Expectation #1

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

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