# Calculation of mean value of normal distribution if we only know the maximum and minumum value

If I have only maximum and minimum values, can I calculate mean value of normal distribution?

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Are you asking if it is possible to determine the average of a sample $x_1,\ldots,x_n$ knowing only $\max_i x_i$ and $\min_i x_i$? – Stefan Hansen Mar 6 '13 at 16:30