Question
Let X be a discrete random variable that takes values X ()={2,1,0,1,2}, and suppose that X has probability mass function pX(x) = c(1 + x^2)
Let X be a discrete random variable that takes values X()={2,1,0,1,2}, and suppose that X has probability mass function pX(x) = c(1 + x^2) for x X(), where c is a positive constant.
(a) Find the value of c.
(b) Find the expectation of X.
(c) Let Y = |X|. Find the PMF of Y.
(d) Compute E[Y]using the PMF of Y.
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Numerical Algebra Matrix Theory Differential Algebraic Equations And Control Theory
Authors: Peter Benner, Matthias Bollhöfer, Daniel Kressner, Christian Mehl, Tatjana Stykel
1st Edition
3319152602, 9783319152608
