Hi Mark:
Mark Webb wrote:
> It's possible to add a normal distribution to a histogram. What exactly
> is this doing ?
> Is this correct ? The line drawn represents what the distribution would
> look like if totally normal.
> So it plots the mean & std deviation of the histogram using the normal
> density equation / probability density function.
Almost the same as you say, but perhaps slightly different: my
interpretation is that it plots a normal distribution with exactly the
same mean&standard deviation as the data.
HTH,
Marta GG
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