Thread: Moment generating functions

Hey guys,

Any idea how to find the moment generating function? I know for discrete ones it's the SUM{e^(tx)p(x)}, but I don't understand how to actually go about doing that.

Any ideas?

Originally Posted by MS330

Hey guys,

Any idea how to find the moment generating function? I know for discrete ones it's the SUM{e^(tx)p(x)}, but I don't understand how to actually go about doing that.

Any ideas?

Example: let be a discrete random variable. And suppose that it takes that values with probability 0.2, with probability 0.3, and with probability 0.5.

Then its moment generating function is:

How would I do it if I was asked to find the mgf for the possion distribution, with no values given?

Originally Posted by MS330

How would I do it if I was asked to find the mgf for the possion distribution, with no values given?

Please refer to this thread:
http://www.mathhelpforum.com/math-he...tribution.html

This question has been answered.