Actuarial & Insurance
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Curtate Life Expectancy

Expected remaining whole years of life from survival probabilities.

Formula

ex=∑k=1∞kpxe_x = \sum_{k=1}^{\infty} {}_k p_x

Variables

e_xLife expectancy at age x
{}_k p_xProbability of surviving k more years

Example

Summed from a life table's survival probabilities.

Did You Know?

Life tables, first built by Edmond Halley in 1693, remain the backbone of pricing life insurance.

actuariallife expectancymortality

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