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December 28th, 2008, 10:22 AM
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| | Probability Distribution Help? Hey there,
I was wondering if anyone could shed any light on thse questions. My knowledge in this area is sketchy. I would welcome any help greatly!
Kind Regards,
Ross | 
December 28th, 2008, 04:59 PM
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Originally Posted by RossBrons Hey there,
I was wondering if anyone could shed any light on thse questions. My knowledge in this area is sketchy. I would welcome any help greatly!
Kind Regards,
Ross | I have time for Q19 (i) and (ii):
Mean:
Variance: ![Var(X) = E(X^2) - [E(X)]^2 Var(X) = E(X^2) - [E(X)]^2](http://www.mathhelpforum.com/math-help/latex2/img/94a686c6fa202a524eedc6eb07e614d7-1.gif) .
(iii) You should do some research.
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December 29th, 2008, 04:29 AM
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Originally Posted by RossBrons Hey there,
I was wondering if anyone could shed any light on thse questions. My knowledge in this area is sketchy. I would welcome any help greatly!
Kind Regards,
Ross | For Q20, read this: http://en.wikipedia.org/wiki/Standard_error_(statistics)
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December 29th, 2008, 04:44 AM
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Originally Posted by mr fantastic I have time for Q19 (i) and (ii):
Mean:
Variance: ![Var(X) = E(X^2) - [E(X)]^2 Var(X) = E(X^2) - [E(X)]^2](http://www.mathhelpforum.com/math-help/latex2/img/94a686c6fa202a524eedc6eb07e614d7-1.gif) .
(iii) You should do some research. | Regarding (iii):
1. Read this (well I think it's funny and it's something I didn't know): Urban Dictionary: grauniad
2. Read this regarding iii (c): Poisson distribution
3. Read this regarding iii (a): Poisson process - Wikipedia, the free encyclopedia
Now read this: Poisson distribution - Wikipedia, the free encyclopedia
So which option does that leave ....?
__________________ There are two things you should never try to prove: the impossible and the obvious. The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low and achieving our mark. (Michelangelo Buonarroti) To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
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