# Question: Find the variance and coefficient of skewness for a geometric

Find the variance and coefficient of skewness for a geometric random variable whose PMF is

You may want to use the results of Exercise 4.13.

You may want to use the results of Exercise 4.13.

## Relevant Questions

Find the variance and coefficient of skewness for a Poisson random variable whose PMF is Consider a Gaussian random variable, X, with mean µ and variance σ2. (a) Find E [X|X > u + σ] (b) Find E [X|| X –u| < σ] Let X be a Gaussian random variable with zero mean and arbitrary variance, σ2. Given the transformation Y= X3, find fY (y). A pair of random variables has a joint PDF specified by (a) Find (X > 2, Y < 0). (b) Find Pr (0 < X < 2, | Y + 1| > 2. (c) Find Hint: Set up the appropriate double integral and then use the change of variables: u = x – ...Recall the random variables of Exercise 5.12 that are uniformly distributed over the region |X| + |Y| ≤1. (a) Find the conditional PDFs, fX|Y and f Y|X (y| x) . (b) Find the conditional CDFs, fX|Y and f Y|X (y| x). (c) ...Post your question