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Math Help - survival function

  1. #1
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    survival function

    Anyone can explain why Expected value is equal to integrate Sy(y) dy?

    In my class, I only learned that E(y) = integrate y* fy(y) dy.

    Help appreciated!
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  2. #2
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    Quote Originally Posted by cm917 View Post
    Anyone can explain why Expected value is equal to integrate Sy(y) dy?

    In my class, I only learned that E(y) = integrate y* fy(y) dy.

    Help appreciated!
    Read 7.1.3 of WWS509 - Lecture Notes
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