Unformatted text preview: X . ___________________________________________________ E( X ) = (0) f X (0) + (1) f X (1) + (2) f X (2) = 1 ← ___________________________________________________ 4. (2 pts) Determine the value of E( X 2 ), the expected value of X 2 . ___________________________________________________ E( X 2 ) = (0 2 ) f X (0) + (1 2 ) f X (1) + (2 2) f X (2) = 3 / 2 ← ___________________________________________________ 5. (2 pts) Determine the value of P( X 2 = 4). ___________________________________________________ P( X 2 = 4) = P( X = 2) = 1 / 4 ← ___________________________________________________ ___________________________________________________ Ask yourself: Can you write the event X = 2 in terms of H 1 and H 2 ? Write on the back any concerns about the weekly quizzes or the course in general. IE 230 – Page 1 of 1 – Schmeiser...
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 Fall '08
 Xangi
 Probability theory, Cumulative distribution function, Probability mass function

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