what is the density function of x what is a higher moment of density greater moments of an unknown density function why are density functions called higher moments why density function is higher what is the density of a unknown function what would be higher moments of an unknown density function density moment which is stronger the moment of an unknown density function why is density density higher why is density higher what is density of the moment which density function can you use with an unknown density function? what density function is needed to compute nm sigma when to compute higher moments what is higher moment of an unknown density function what is higher moments density which functions can have higher moments what is the density function for higher moments which density function is higher