Queries on DSP: gauss/normal distribution and central limit theorem

hi all, i m currently doing one project on signal processing ..
i have some queries on dsp pls solve them
1) It is stated that " In any distribution , random variables which are independent are uncorrelated but the vice-versa is not true i.e. the variables which tend to be uncorrelated may need not always independent " pls explain me with some practical example..
2) what is the significance of central limit theorem..?
3) what is gauss distribution or normal distribution .......how & where it can be used ..?


THANKS

some queries on DSP

for normal distribution curves the following page has got lot of resources

https://en.wikipedia.org/wiki/Normal_distribution

Re: some queries on DSP

rajhere said:

hi all, i m currently doing one project on signal processing ..
i have some queries on dsp pls solve them
1) It is stated that " In any distribution , random variables which are independent are uncorrelated but the vice-versa is not true i.e. the variables which tend to be uncorrelated may need not always independent " pls explain me with some practical example..

Click to expand...

Check this:
http://www.cis.hut.fi/aapo/papers/IJCNN99_tutorialweb/node8.html

Added after 3 minutes:

rajhere said:

2) what is the significance of central limit theorem..?

THANKS

Click to expand...

Here:
http://en.wikipedia.org/wiki/Central_limit_theorem

Re: some queries on DSP

hi,

I think the answers to all your questions are available in the book

Probability, Random Variables and Random signal principles by Peyton Z. Peebles

some queries on DSP

Probability, Random Variables and Random signal principles by Peyton Z. Peebles is available on gigapedia.org

you may need to register for free to download the book for free

Re: some queries on DSP

https://en.wikipedia.org/wiki/Central_limit_theorem