How do i proof the that Z=(x-M)/sigma has standard normal density function w/o assuming that Z is normal

thanks

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- March 27th 2009, 05:46 AMriosp1How do I proof standard normal density function
How do i proof the that Z=(x-M)/sigma has standard normal density function w/o assuming that Z is normal

thanks - March 27th 2009, 08:20 AMCaptainBlack