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## #1 2013-05-08 02:00:50

lucik1900
Member
Registered: 2013-03-15
Posts: 12

### Consider two rvs X and Y with joint pdf f(x,y)=k−y, 0<y<x2 <1, find th

Consider two rvs X and Y with joint pdf f(x,y)=k−y, 0<y<x2 <1, find the constant k

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## #2 2013-05-08 05:16:21

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Consider two rvs X and Y with joint pdf f(x,y)=k−y, 0<y<x2 <1, find th

Hi lucik1900;

What is x2? Is that x^2?

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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## #3 2013-05-08 05:18:45

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,037

### Re: Consider two rvs X and Y with joint pdf f(x,y)=k−y, 0<y<x2 <1, find th

Hi lucik1900

I am getting

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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## #4 2013-05-08 05:43:00

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Consider two rvs X and Y with joint pdf f(x,y)=k−y, 0<y<x2 <1, find th

Hi all;

I am liking 33 / 10 but I sure do not like guessing at questions. x^2  is much better than x2.

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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## #5 2013-05-08 05:45:46

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,037

### Re: Consider two rvs X and Y with joint pdf f(x,y)=k−y, 0<y<x2 <1, find th

Yes, it is, but I have noticed that people often use that kind of notation when they do not know how to put an exponent in the superscript.

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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