is the function normpdf ever used?

That got me thinking.  I have never thought about the formula for the Gaussian curve before.

This is an extract from     http://en.wikipedia.org/wiki/Normal_distribution

Yes it is but I am not sure how.  What exact question would it be used for?

I'd like to know too :/

normpdf calculates the probability density function values for a normal distribution of given mean and standard deviation.

For example, if we have a normal distribution with mean 10 and standard deviation 3 and we want to know the value of the probability density at 12, then normpdf(12,10,3) = 0.106483   (at least, that's how it's done on the TI-Nspire calculator).

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Yes but what does that actually mean Alan ?

Perhaps this graph will help:

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Thanks Alan, now I understand :)