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Y A b N X z 挧 q g s a 2 1191 TEL F08 FAX F08 Mail Finfo@alexdajp @ y q g T C g E E E q g ځz1 I struggle with absolute value Here I need to find E X 4 and E X knowing that X is a normally distributed random variable with zero mean and variance σ 2 I know the pdf of the normal rv and the way to compute E X 4 E X 4 = ∫ x 4 f X ( x) d x But how should I handle the absolute sign when I computeThe CDC AZ Index is a navigational and informational tool that makes the CDCgov website easier to use It helps you quickly find and retrieve specific information Glosario èã° q xV x[ V[g