If E[X^r] = 6^r

where r = 1, 2, 3...

…can you please help me find the moment generating function and the p.m.f. of X?

Printable View

- Oct 3rd 2009, 02:56 PMIntsecxtanx…find the moment generating function????
If E[X^r] = 6^r

where r = 1, 2, 3...

…can you please help me find the moment generating function and the p.m.f. of X? - Oct 4th 2009, 12:39 AMmr fantastic
From the definition of the moment generating function it should be clear that

and you should recognise what this function is. Then it should be clear that is the mgf of a pmf that has all its mass concentrated at one point. That is, p(x) = 1 when x = c and the value of c is obvious.