I saw once saw it somewhere used that for a nonnegative rv $X$ , $$ E(X) = \int_0^\infty Pr(X \geq t).$$ Could someone kindly explain .Or Am I wrong?
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https://math.stackexchange.com/questions/642021/expected-value-as-integral-of-survival-function – Stratos supports the strike Jan 18 '23 at 12:35
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Sure..that does ..thank you all of you – AgnostMystic Jan 18 '23 at 13:16