| Derive |
Using |
Formula |
| Mean Residual Life Function |
PDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{x}^{\infty }(t-x){\text{PDF}}[{\mathcal {D}},t]\,dt}{\int _{x}^{\infty }{\text{PDF}}[{\mathcal {D}},t]\,dt}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/37c262797983a25ec8913e00f2e01b2d082c3f66) |
| Mean Residual Life Function |
PDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{0}^{\infty }t{\text{PDF}}[{\mathcal {D}},x+t]\,dt}{\int _{0}^{\infty }{\text{PDF}}[{\mathcal {D}},x+t]\,dt}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/820b8ecf1dc1126ee32ab9563f5087d24ba3526f) |
| Mean Residual Life Function |
PDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\int _{x}^{\infty }t{\text{PDF}}[{\mathcal {D}},t]\,dt}{\int _{x}^{\infty }{\text{PDF}}[{\mathcal {D}},t]\,dt}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/f4be9db1f59bcd4627fdf6b5991cd7ef1e8ef70f) |
| Mean Residual Life Function |
PDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\text{Mean}}[{\mathcal {D}}]-x-\int _{-\infty }^{x}(t-x){\text{PDF}}[{\mathcal {D}},t]\,dt}{1-\int _{-\infty }^{x}{\text{PDF}}[{\mathcal {D}},t]\,dt}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/994938c628c928f8b9b363fc5508a6175741a3bc) |
| Mean Residual Life Function |
PDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=\left({\begin{array}{cc}\{&{\begin{array}{cc}{\text{Mean}}[{\mathcal {D}}]-x&x<u\\-x+{\frac {{\text{Mean}}[{\mathcal {D}}]-\int _{u}^{x}t{\text{PDF}}[{\mathcal {D}},t]\,dt}{\int _{x}^{\infty }{\text{PDF}}[{\mathcal {D}},t]\,dt}}&u\leq x<v\\{\text{Indeterminate}}&{\text{True}}\\\end{array}}\\\end{array}}\right){\text{/;}}u={\text{support}}[{\mathcal {D}}][[1,1]]\land v={\text{support}}[{\mathcal {D}}][[1,2]]}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ebd1325edceec67516e9d922523eb15655ca7993) |
| Mean Residual Life Function |
CDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\text{Mean}}[{\mathcal {D}}]-x+\int _{-\infty }^{x}{\text{CDF}}[{\mathcal {D}},t]\,dt}{1-{\text{CDF}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ba0547f5f91b314efe0abdd184ed6d98d03215c8) |
| Mean Residual Life Function |
CDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{x}^{\infty }(t-x){\frac {\partial {\text{CDF}}[{\mathcal {D}},t]}{\partial t}}\,dt}{1-{\text{CDF}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/29d017c6666216cb07415daf38ef318db8d17cbc) |
| Mean Residual Life Function |
CDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{0}^{\infty }t{\frac {\partial {\text{CDF}}[{\mathcal {D}},t+x]}{\partial t}}\,dt}{1-{\text{CDF}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ced99f2a36a224b599c9e1b8307160b1b14afbde) |
| Mean Residual Life Function |
CDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\int _{x}^{\infty }t{\frac {\partial {\text{CDF}}[{\mathcal {D}},t]}{\partial t}}\,dt}{1-{\text{CDF}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/5764296a8762f9e8c27ae5027f45a2c6c37233ae) |
| Mean Residual Life Function |
Characteristic Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }[{\text{CharacteristicFunction}}[{\mathcal {D}},\tau ]](-t)\right)\,dt}{{\sqrt {2\pi }}{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ad71da78f957df278a9b7837673043ffd3d1cc03) |
| Mean Residual Life Function |
Characteristic Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {2\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }[{\text{CharacteristicFunction}}[{\mathcal {D}},\tau ]](-t)\right)\,dt}{{\sqrt {2\pi }}-(2i)\left({\mathcal {F}}_{\tau }\left[{\frac {{\text{CharacteristicFunction}}[{\mathcal {D}},\tau ]}{\tau }}\right](-x)\right)}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ac5427b14de5d9c585787f4bea96738d00c8018c) |
| Mean Residual Life Function |
Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\text{Mean}}[{\mathcal {D}}]-x+\int _{-\infty }^{x}(1-{\text{SurvivalFunction}}[{\mathcal {D}},t])\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/d6e1a1ae9fbe28ce01d28781eebe8c69e17683e0) |
| Mean Residual Life Function |
Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-{\frac {\int _{x}^{\infty }(t-x){\frac {\partial {\text{SurvivalFunction}}[{\mathcal {D}},t]}{\partial t}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/798c43e29b8ed61d680608edad857993a2874130) |
| Mean Residual Life Function |
Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-{\frac {\int _{0}^{\infty }t{\frac {\partial {\text{SurvivalFunction}}[{\mathcal {D}},t+x]}{\partial t}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/83e0ff7ac8726e5d7c4a1cf9d74777e7fa850d19) |
| Mean Residual Life Function |
Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x-{\frac {\int _{x}^{\infty }t{\frac {\partial {\text{SurvivalFunction}}[{\mathcal {D}},t]}{\partial t}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/6b7b2f8c36b5c69a5589da82cdc7517f9ebcff1a) |
| Mean Residual Life Function |
Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {{\text{Mean}}[{\mathcal {D}}]+\int _{-\infty }^{x}t{\frac {\partial {\text{SurvivalFunction}}[{\mathcal {D}},t]}{\partial t}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/3189652dc25d59e3670452e8fff9a991b0db4f1e) |
| Mean Residual Life Function |
Cumulative Hazard Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-{\frac {\int _{0}^{\infty }{\frac {t{\frac {\partial {\text{CumulativeHazardFunction}}({\mathcal {D}},t+x)}{\partial t}}}{e^{{\text{CumulativeHazardFunction}}({\mathcal {D}},t+x)}}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/36b62acf4b95319daf69f89b1ec5e933a1355e48) |
| Mean Residual Life Function |
Cumulative Hazard Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {-x\exp(-{\text{CumulativeHazardFunction}}({\mathcal {D}},x))+{\text{Mean}}[{\mathcal {D}}]-\int _{-\infty }^{x}{\frac {t{\frac {\partial {\text{CumulativeHazardFunction}}({\mathcal {D}},t)}{\partial t}}}{e^{{\text{CumulativeHazardFunction}}({\mathcal {D}},t)}}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/fc2a3225f435e44aad23eae0972f5dece3bcdab3) |
| Mean Residual Life Function |
Hazard Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{0}^{\infty }\left(t\exp \left(-\int _{-\infty }^{t+x}{\text{HazardFunction}}[{\mathcal {D}},\tau ]\,d\tau \right)\right){\text{HazardFunction}}[{\mathcal {D}},t+x]\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/76050454023a5b82047f985004c1ca615ef4c123) |
| Mean Residual Life Function |
Hazard Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {-x\exp \left(-\int _{-\infty }^{x}{\text{HazardFunction}}[{\mathcal {D}},t]\,dt\right)+{\text{Mean}}[{\mathcal {D}}]-\int _{-\infty }^{x}\left(t\exp \left(-\int _{-\infty }^{t}{\text{HazardFunction}}[{\mathcal {D}},\tau ]\,d\tau \right)\right){\text{HazardFunction}}[{\mathcal {D}},t]\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/d2f8f11b59a0d11be09acb7066fb1dd30c9ce72e) |
| Mean Residual Life Function |
Inverse CDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }\int _{0}^{1}te^{(i({\text{InverseCDF}}[{\mathcal {D}},\tau ]-t-x))\xi }d\tau d\xi dt}{(2\pi ){\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/771d07fc958ab90b26a05c503d8c1d78cdf12d26) |
| Mean Residual Life Function |
Inverse CDF |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {{\text{Mean}}[{\mathcal {D}}]-\int _{0}^{{\text{CDF}}[{\mathcal {D}},x]}{\text{InverseCDF}}[{\mathcal {D}},t]\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4136a687f30c76d32ea66479069787d0e15ac97b) |
| Mean Residual Life Function |
Quantile |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {{\text{Mean}}[{\mathcal {D}}]-{\frac {\int _{-\infty }^{x}\int _{-\infty }^{\infty }\int _{0}^{1}te^{(i({\text{Quantile}}[{\mathcal {D}},\tau ]-t))\xi }d\tau d\xi dt}{2\pi }}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/da186bf502472f17ae5d12d9a84e66e9f0c50de7) |
| Mean Residual Life Function |
Quantile |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }\int _{0}^{1}te^{(i({\text{Quantile}}[{\mathcal {D}},\tau ]-t-x))\xi }d\tau d\xi dt}{(2\pi ){\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/791a63fff27517712e2b2571a66075d7330d8cf0) |
| Mean Residual Life Function |
Quantile |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {{\text{Mean}}[{\mathcal {D}}]-\int _{0}^{{\text{CDF}}[{\mathcal {D}},x]}{\text{Quantile}}[{\mathcal {D}},t]\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/b2372b493dd73edf9f3c35f13c77dbcc0fdf646b) |
| Mean Residual Life Function |
Inverse Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }\int _{0}^{1}te^{(i({\text{InverseSurvivalFunction}}[{\mathcal {D}},\tau ]-t-x))\xi }d\tau d\xi dt}{(2\pi ){\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/f039b07bf82857c5f7a20b6387682550a823d12b) |
| Mean Residual Life Function |
Inverse Survival Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {{\text{Mean}}[{\mathcal {D}}]-\int _{{\text{SurvivalFunction}}[{\mathcal {D}},x]}^{1}{\text{InverseSurvivalFunction}}[{\mathcal {D}},t]\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/beee7c988fb48d5f4ad2e516960c6a1997b7fc48) |
| Mean Residual Life Function |
Sparsity |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }\int _{0}^{1}t\exp \left(\left(i\left({\text{Median}}[{\mathcal {D}}]+\int _{\frac {1}{2}}^{\tau }{\text{Sparsity}}({\mathcal {D}},s)\,ds-t-x\right)\right)\xi \right)d\tau d\xi dt}{(2\pi ){\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/9064b98bf27e9f7c76ce5b3ecf658242f2d97752) |
| Mean Residual Life Function |
Sparsity |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {-x(1-{\text{CDF}}[{\mathcal {D}},x])+{\text{Mean}}[{\mathcal {D}}]-{\frac {\int _{-\infty }^{x}\int _{-\infty }^{\infty }\int _{0}^{1}t\exp \left(\left(i\left({\text{Median}}[{\mathcal {D}}]+\int _{\frac {1}{2}}^{\tau }{\text{Sparsity}}({\mathcal {D}},s)\,ds-t\right)\right)\xi \right)d\tau d\xi dt}{2\pi }}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ba2aef073fa7900134b53daeb5ff3d2ebbac48a2) |
| Mean Residual Life Function |
Sparsity |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {-x(1-{\text{CDF}}[{\mathcal {D}},x])+{\text{Mean}}[{\mathcal {D}}]-\int _{0}^{{\text{CDF}}[{\mathcal {D}},x]}\left({\text{Median}}[{\mathcal {D}}]+\int _{\frac {1}{2}}^{t}{\text{Sparsity}}({\mathcal {D}},s)\,ds\right)\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/bda871153f3e347bffac8d9766e5853c08cc5311) |
| Mean Residual Life Function |
Lorenz Curve 1 |
)}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}-x}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1274b5f598f7d08b5298817a20ecdb9f2cfdcf30) |
| Mean Residual Life Function |
Lorenz Curve 1 |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\text{Mean}}[{\mathcal {D}}]\int _{0}^{\infty }{\frac {t{\frac {\partial {\text{LorenzCurve1}}({\mathcal {D}},t+x)}{\partial t}}}{t+x}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/a326d7d7aa257f16fb748b28914282b72c289f16) |
| Mean Residual Life Function |
Lorenz Curve 1 |
)-x+(x{\text{Mean}}[{\mathcal {D}}])\int _{-\infty }^{x}{\frac {\frac {\partial {\text{LorenzCurve1}}({\mathcal {D}},t)}{\partial t}}{t}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/c7505ab4eccd7eaf98fcd56e7b33c912724646e1) |
| Mean Residual Life Function |
Lorenz Curve 1 |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\text{Mean}}[{\mathcal {D}}]-x+({\text{Mean}}[{\mathcal {D}}]x)\int _{-\infty }^{x}{\frac {{\text{LorenzCurve1}}({\mathcal {D}},t)}{t^{2}}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/cb0511ef4de6be415c3589981b5f29d802446e58) |
| Mean Residual Life Function |
Lorenz Curve 2 |
)}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}-x}](https://wikimedia.org/api/rest_v1/media/math/render/svg/5098ea119b72aa96ba97df0665265f71bc78b532) |
| Mean Residual Life Function |
Lorenz Curve 2 |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\text{Mean}}[{\mathcal {D}}]\int _{0}^{\infty }{\frac {t{\frac {\partial {\text{LorenzCurve2}}({\mathcal {D}},{\text{CDF}}[{\mathcal {D}},t+x])}{\partial t}}}{t+x}}\,dt}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1ce2b6cdbdecc0fa7ae41180ee2cbae20bd1e187) |
| Mean Residual Life Function |
Mean Residual Life Function |
 |
| Mean Residual Life Function |
Moment |
)-x\theta (-x)+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)(x{\text{Moment}}[{\mathcal {D}},k+1]+{\text{Moment}}[{\mathcal {D}},k+2])}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/8b3654ef360747185d9ea1e12e5f7c618dc8bc7f) |
| Mean Residual Life Function |
Moment |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right){\text{Moment}}[{\mathcal {D}},k+2]}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/da1a539114c522cade76b608b2b6e5e22fcc3fff) |
| Mean Residual Life Function |
Central Moment |
)-x\theta (-x)+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)\left(x\sum _{j=0}^{k+1}\left({\binom {k+1}{j}}{\text{Mean}}[{\mathcal {D}}]^{k+1-j}\right){\text{CentralMoment}}[{\mathcal {D}},j]+\sum _{j=0}^{k+2}\left({\binom {k+2}{j}}{\text{Mean}}[{\mathcal {D}}]^{k+2-j}\right){\text{CentralMoment}}[{\mathcal {D}},j]\right)}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/52b2f9ae9289c1d5d58fd223eed5ae1acefd7245) |
| Mean Residual Life Function |
Central Moment |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right)\sum _{j=0}^{k+2}\left({\binom {k+2}{j}}{\text{Mean}}[{\mathcal {D}}]^{k+2-j}\right){\text{CentralMoment}}[{\mathcal {D}},j]}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/69cd3ceb7ab1c484aa86e132be854b20a55e09df) |
| Mean Residual Life Function |
Factorial Moment |
)-x\theta (-x)+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)\left(x\sum _{j=0}^{k+1}{\mathcal {S}}_{k+1}^{(j)}{\text{FactorialMoment}}[{\mathcal {D}},j]+\sum _{j=0}^{k+2}{\mathcal {S}}_{k+2}^{(j)}{\text{FactorialMoment}}[{\mathcal {D}},j]\right)}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/fca3a438e5ea863269185cc50785a271bf5d9ed9) |
| Mean Residual Life Function |
Factorial Moment |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right)\sum _{j=0}^{k+2}{\mathcal {S}}_{k+2}^{(j)}{\text{FactorialMoment}}[{\mathcal {D}},j]}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/a114205593d7edacf4d183cce5787466645ac0f3) |
| Mean Residual Life Function |
Ascending Factorial Moment |
)-x\theta (-x)+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)\left(x\sum _{j=0}^{k+1}\left((-1)^{k-j-1}{\mathcal {S}}_{k+1}^{(j)}\right){\text{AscendingFactorialMoment}}({\mathcal {D}},j)+\sum _{j=0}^{k+2}\left((-1)^{k-j}{\mathcal {S}}_{k+2}^{(j)}\right){\text{AscendingFactorialMoment}}({\mathcal {D}},j)\right)}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/9ef1777bda8e63f21af982a88cdc1fd4358ba6d5) |
| Mean Residual Life Function |
Ascending Factorial Moment |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right)\sum _{j=0}^{k+2}\left((-1)^{k-j}{\mathcal {S}}_{k+2}^{(j)}\right){\text{AscendingFactorialMoment}}({\mathcal {D}},j)}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/bed12f21b4e082722aad5a1d59a8a9a3182e525a) |
| Mean Residual Life Function |
Cumulant |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)({\text{BellY}}[k+2,1,{\text{Table}}[\{1,{\text{Cumulant}}[{\mathcal {D}},j]\},\{j,k+2\}]]+x{\text{BellY}}[k+1,1,{\text{Table}}[\{1,{\text{Cumulant}}[{\mathcal {D}},j]\},\{j,k+1\}]])}{(k+1)!}}+(1-\theta (x)){\text{Mean}}[{\mathcal {D}}]-x\theta (-x)}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/7c8ca08f06d97c56cde37715ceece7866bbdd3e3) |
| Mean Residual Life Function |
Cumulant |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right){\text{BellY}}[k+2,1,{\text{Table}}[\{1,{\text{Cumulant}}[{\mathcal {D}},j]\},\{j,k+2\}]]}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/8dac911a53960d7d9b85e8699ac7b06ff0fb42d6) |
| Mean Residual Life Function |
Factorial Cumulant |
)-x\theta (-x)+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)\left(x{\text{BellY}}\left[k+1,1,{\text{Table}}\left[\left\{1,\sum _{i=1}^{j}{\mathcal {S}}_{j}^{(i)}{\text{FactorialCumulant}}({\mathcal {D}},i)\right\},\{j,k+1\}\right]\right]+{\text{BellY}}\left[k+2,1,{\text{Table}}\left[\left\{1,\sum _{i=1}^{j}{\mathcal {S}}_{j}^{(i)}{\text{FactorialCumulant}}({\mathcal {D}},i)\right\},\{j,k+2\}\right]\right]\right)}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/680cddfde9b2b42d800fb020fd4bf79263105a98) |
| Mean Residual Life Function |
Factorial Cumulant |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right){\text{BellY}}\left[k+2,1,{\text{Table}}\left[\left\{1,\sum _{i=1}^{j}{\mathcal {S}}_{j}^{(i)}{\text{FactorialCumulant}}({\mathcal {D}},i)\right\},\{j,k+2\}\right]\right]}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/062b60b58785bbf9bb86b22a77fa2d2e3389923c) |
| Mean Residual Life Function |
Ascending Factorial Cumulant |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {\sum _{k=0}^{\infty }{\frac {\left((-1)^{k-1}\delta ^{(k)}(x)\right)\left({\text{BellY}}\left[k+2,1,{\text{Table}}\left[\left\{1,\sum _{i=0}^{j}\left((-1)^{j-i}{\mathcal {S}}_{j}^{(i)}\right){\text{AscendingFactorialCumulant}}({\mathcal {D}},i)\right\},\{j,k+2\}\right]\right]+x{\text{BellY}}\left[k+1,1,{\text{Table}}\left[\left\{1,\sum _{i=0}^{j}\left((-1)^{j-i}{\mathcal {S}}_{j}^{(i)}\right){\text{AscendingFactorialCumulant}}({\mathcal {D}},i)\right\},\{j,k+1\}\right]\right]\right)}{(k+1)!}}+(1-\theta (x)){\text{Mean}}[{\mathcal {D}}]-x\theta (-x)}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/a8d460146c46d4406157c2e63f330dff10f3ea54) |
| Mean Residual Life Function |
Ascending Factorial Cumulant |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\theta (-x){\text{Mean}}[{\mathcal {D}}]+\sum _{k=0}^{\infty }{\frac {\left((-1)^{k}\delta ^{(k)}(x)\right){\text{BellY}}\left[k+2,1,{\text{Table}}\left[\left\{1,\sum _{i=0}^{j}\left((-1)^{j-i}{\mathcal {S}}_{j}^{(i)}\right){\text{AscendingFactorialCumulant}}({\mathcal {D}},i)\right\},\{j,k+2\}\right]\right]}{(k+1)!}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/d9e053a35158f961ff52980004ce42d6aafeed44) |
| Mean Residual Life Function |
Moment Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\frac {1}{2}}({\text{Mean}}[{\mathcal {D}}]-x)-{\frac {{\mathcal {F}}_{\tau }\left[{\frac {{\text{MomentGeneratingFunction}}[{\mathcal {D}},i\tau ]}{\tau ^{2}}}\right](-x)}{\sqrt {2\pi }}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4ed6f6945b18a227ca31f078d08fc01ca71cf703) |
| Mean Residual Life Function |
Moment Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }[{\text{MomentGeneratingFunction}}[{\mathcal {D}},i\tau ]](-t)\right)\,dt}{{\sqrt {2\pi }}{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1dcde32817a42d85c01339dee9e611e775a2c9c1) |
| Mean Residual Life Function |
Moment Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {2\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }[{\text{MomentGeneratingFunction}}[{\mathcal {D}},i\tau ]](-t)\right)\,dt}{{\sqrt {2\pi }}-(2i)\left({\mathcal {F}}_{\tau }\left[{\frac {{\text{MomentGeneratingFunction}}[{\mathcal {D}},i\tau ]}{\tau }}\right](-x)\right)}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/9b0b4836a76e4a3b66ebe2d949e31c3df06b8216) |
| Mean Residual Life Function |
Central Moment Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\frac {1}{2}}({\text{Mean}}[{\mathcal {D}}]-x)-{\frac {{\mathcal {F}}_{\tau }\left[{\frac {e^{(i\tau ){\text{Mean}}[{\mathcal {D}}]}{\text{CentralMomentGeneratingFunction}}[{\mathcal {D}},i\tau ]}{\tau ^{2}}}\right](-x)}{\sqrt {2\pi }}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/e834d95028aa6fad56a6f5b26fc2c037d77310c8) |
| Mean Residual Life Function |
Central Moment Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }\left[e^{(i\tau ){\text{Mean}}[{\mathcal {D}}]}{\text{CentralMomentGeneratingFunction}}[{\mathcal {D}},i\tau ]\right](-t)\right)\,dt}{{\sqrt {2\pi }}{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/8076103c78ba50676aa9f5db33779f0d6a07cecf) |
| Mean Residual Life Function |
Central Moment Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {2\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }\left[e^{(i\tau ){\text{Mean}}[{\mathcal {D}}]}{\text{CentralMomentGeneratingFunction}}[{\mathcal {D}},i\tau ]\right](-t)\right)\,dt}{{\sqrt {2\pi }}-(2i)\left({\mathcal {F}}_{\tau }\left[{\frac {e^{(i\tau ){\text{Mean}}[{\mathcal {D}}]}{\text{CentralMomentGeneratingFunction}}[{\mathcal {D}},i\tau ]}{\tau }}\right](-x)\right)}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/5d5effa02e08be9a9bd8fd129c5787dd3dcf0d0d) |
| Mean Residual Life Function |
Cumulant Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)={\frac {{\frac {1}{2}}({\text{Mean}}[{\mathcal {D}}]-x)-{\frac {{\mathcal {F}}_{\tau }\left[{\frac {\exp({\text{CumulantGeneratingFunction}}[{\mathcal {D}},i\tau ])}{\tau ^{2}}}\right](-x)}{\sqrt {2\pi }}}}{{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/a9dfeee82b7372907e5ec13ad30fb0b0db4b631b) |
| Mean Residual Life Function |
Cumulant Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }[\exp({\text{CumulantGeneratingFunction}}[{\mathcal {D}},i\tau ])](-t)\right)\,dt}{{\sqrt {2\pi }}{\text{SurvivalFunction}}[{\mathcal {D}},x]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/51589b664ec465abe311bec2a396237cc16c2e58) |
| Mean Residual Life Function |
Cumulant Generating Function |
![{\displaystyle {\text{MeanResidualLifeFunction}}({\mathcal {D}},x)=-x+{\frac {2\int _{x}^{\infty }t\left({\mathcal {F}}_{\tau }[\exp({\text{CumulantGeneratingFunction}}[{\mathcal {D}},i\tau ])](-t)\right)\,dt}{{\sqrt {2\pi }}-(2i)\left({\mathcal {F}}_{\tau }\left[{\frac {\exp({\text{CumulantGeneratingFunction}}[{\mathcal {D}},i\tau ])}{\tau }}\right](-x)\right)}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ccc6fce1513654e828f6ade9a41779fd4213f503) |
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