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(c) (4 points) Suppose that X is a random variable for which E(X) = µ and Var(X) = σ2, and let c be an arbitrary constant Which one of these statements is true A E(X −c) 2 = (µ−c) σ2 D E(X −c)2 = (µ−c) 2σ2 B E(X −c)2 = (µ−c)2 E E(X −c)2 = µ2 c2 2σ2 C E(X −c) 2 = (µ−c) −σ 2F E(X −c) = µµ θσ 2 /2 1 = EX = Ee Y = M Y (1) = e µ 2θ2σ 2 2 = EX 2 = Ee 2Y = M Y (2) = e (b) First, note that µ 2 σ 2 2 /(µ 1) = e It follows that a methodofmoments estimate for σ 2 is σˆ 2 = ln(ˆµ 2 /µˆ 2 1) where µˆ 1 = 1 n X i n i =1 µˆ 2 =I j k l m n o j p q r s t u v w x y z {} ~ v} v w x y z { } ~ y {w 0 1 2 3 4 5 6 7 8 9; Osa Plane Wave Scattering By An Ellipsoid Composed Of An Orthorhombic Dielectric Magnetic Material ƒƒ"ƒY "¯Œ^ •"¯ ƒƒbƒNƒX‚È‚µ