needed some clarification in normal distribution

[asd123]

Hi,

I just have a doubt. What is "u" in the given link and is ther eany way to calculate u which is based on X(meu x, sigma x) and Y(meu y, sigma y)

http://mathworld.wolfram.com/NormalDifferenceDistribution.html

thanks

[eklavya]

'u' is the mean of the sample population. it's either a given quantity, or you can calculate it easy. but do your own your bro