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

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#### rajhere

##### Junior Member level 3
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

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..

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

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

THANKS

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