# Question: Find the first three moments of a geometric random variable

Find the first three moments of a geometric random variable whose PMF is PN (n) = (1 – p) pn , n = 0,1, 2, … .

**View Solution:**## Answer to relevant Questions

Find the first three moments of a Poisson random variable whose PMF is For a Gaussian random variable, derive expressions for the coefficient of skewness and the coefficient of kurtosis in terms of the mean and variance, µ and σ2. Suppose θ is a random variable uniformly distributed over the interval [0, 2π). (a) Find the PDF of Y = sin (θ). (b) Find the PDF of Z = cos (θ). (c) Find the PDF of W = tan (θ). 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] A real number between 0 and l00 is randomly selected according to a uniform distribution and rounded off to the nearest integer. For example, 36.5001 is rounded off to 37; √3 is rounded off to 2; and 69.49 is rounded off ...Post your question