P0122_Soln - P0122_Soln 0 x2 1 0<x< 2 60 − 0 10 fX...

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Unformatted text preview: P0122_Soln.doc 0 x2 1 0<x< 2 60 − 0 10 fX( ) x= oh r i e t ew s 0 Recall that… E X = ∫ x X( ) fx So, − ∞ ∞ 10 2 10 2 1 10 2 EX= xX x =∫x 0x2 x 60 d = 0l x0 =0. 9 m 3 [ ] ∫ f () 60−d = 0 ∫ x 60n 10 19 µ − ∞ 10 0 10x 0 ∞ So, for the new coating… E] 2 − Y [ =X 1 E] 212 µ Y E− 1 [ = X = 7m 217 µ m x $0.45 µ m-1 = $97.65 ...
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