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I need a step by step break down on 3 questions If the Data set of Mangos are: 1,1,2,3,5,5,6,3,2,2,1,0 1. E (x^2-x) 2. E(X+3) 3

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I need a step by step break down on 3 questions If the Data set of Mangos are: 1,1,2,3,5,5,6,3,2,2,1,0 1. E (x^2-x) 2. E(X+3) 3 E (x-x)^2 this question the second x has a bar line above it

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