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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- May 3rd 2009, 09:33 AMcm917survival 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! - May 3rd 2009, 09:43 PMmr fantastic
Read 7.1.3 of WWS509 - Lecture Notes