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Please help . I don't understand the question Find E if E = _ [x - P(X)] P(X) 0.205 W N - O X 0.428

Please help . I don't understand the question

Find E if E = _ [x - P(X)] P(X) 0.205 W N - O X 0.428 0.298 0.069 E =(Simplify your answer. Round to three decimal places as needed.)

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