# Question: A certain random variable has a probability generating function given

A certain random variable has a probability- generating function given by

Find the PMF for this random variable.

Find the PMF for this random variable.

## Relevant Questions

Show that for any probability- generating function, H (z), H (1) = 1. A random variable has a moment- generating function given by (a) Find the PDF of the random variable. (b) Use the moment- generating function to find an expression for the k th moment of the random variable. Suppose X is a Poisson random variable with PMF, Find the Chernoff bound for the tail probability, Pr (X ≥ no). Since the Q- function represents the tail probability of a Gaussian random variable, we can use the various bounds on tail probabilities to produce bounds on the Q- function. (a) Use Markov’s inequality to produce an ...Suppose X is a Gaussian random variable with a mean of µ and a variance of σ2 ( i. e., X ~ N( µ, σ2)). Find an expression for E [|X|].Post your question