Re: Probability Problem 2

Brian Tung wrote:
Topi Linkala wrote:

Normal distribution has all probabilities zero but their sum is 1.


???

How does a normal (Gaussian) distribution have all probabilities zero?
The pdf is non-zero *everywhere*.

Because all integrals from x to x are zero if the integrated function is continous like normal distribution is.

Only cumulative normal distribution has non-zero value: integral from -oo to x. Total normal distribution integration from -oo to oo is 1.

Topi 'Calculus 101 needed' Linkala
--
"The whole problem with the world is that fools and fanatics are
always so certain of themselves, but wiser people so full of doubts."
- Bertrand Russell
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.

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