what is the function for finding mean variance which distribution function finds variance what is the distribution function the distribution function is the function that is used to find how to find out mgf of distribution without mgf distribution function of a variable how to find the mean and variance of the distribution what is the function of mgf how to find variance in a distribution function what is the distribution function how to find the distribution functions without using mgf what is the distribution function what type of function is used to find a mean variance? what is the function of mgf how to find distribution function without mgf how to find the range for x using the distribution function which statement is true for the function of the distribution? distribution function find(without using mgf) the mean and variance. what are function of a distribution function? what is the function of mfg