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  2. Leap week calendar - Wikipedia

    en.wikipedia.org/wiki/Leap_week_calendar

    A leap week calendar can take advantage of the 400-year cycle of the Gregorian calendar, as it has exactly 20,871 weeks: with 329 common years of 52 weeks plus 71 leap years of 53 weeks, a leap week calendar would synchronize with the Gregorian every 400 years since (329 × 52 + 71 × 53 = 20,871).

  3. ISO week date - Wikipedia

    en.wikipedia.org/wiki/ISO_week_date

    The US system has weeks from Sunday through Saturday, and partial weeks at the beginning and the end of the year, i.e. 52 full and 1 partial week of 1 or 2 days if the year starts on Sunday or ends on Saturday, 52 full and 2 single-day weeks if a leap year starts on Saturday and ends on Sunday, otherwise 51 full and 2 partial weeks.

  4. Actuarial present value - Wikipedia

    en.wikipedia.org/wiki/Actuarial_present_value

    The actuarial present value of one unit of an n-year term insurance policy payable at the moment of death can be found similarly by integrating from 0 to n. The actuarial present value of an n year pure endowment insurance benefit of 1 payable after n years if alive, can be found as

  5. Actuarial notation - Wikipedia

    en.wikipedia.org/wiki/Actuarial_notation

    An upper-case is an assurance paying 1 on the insured event; lower-case is an annuity paying 1 per annum at the appropriate time.; Bar implies continuous – or paid at the moment of death; double dot implies paid at the beginning of the year; no mark implies paid at the end of the year;

  6. Experience modifier - Wikipedia

    en.wikipedia.org/wiki/Experience_modifier

    The experience rating approach uses an individual's or group’s historic data as a proxy for future risk, and insurers adjust and set insurance premiums and plans accordingly. [1] Each year, a newer year's data is added to the three year window of experience used in the calculation, and the oldest year from the prior calculation is dropped off.

  7. Actuarial control cycle - Wikipedia

    en.wikipedia.org/wiki/Actuarial_control_cycle

    The actuarial control cycle is a specific business activity which involves the application of actuarial science to real world business problems. The actuarial control cycle requires a professional within that field (i.e., an actuary ) to specify a problem, develop a solution, monitor the consequences thereof, and repeat the process. [ 1 ]

  8. Life table - Wikipedia

    en.wikipedia.org/wiki/Life_table

    In actuarial science and demography, a life table (also called a mortality table or actuarial table) is a table which shows, for each age, the probability that a person of that age will die before their next birthday ("probability of death"). In other words, it represents the survivorship of people from a certain population. [1]

  9. de Moivre's law - Wikipedia

    en.wikipedia.org/wiki/De_Moivre's_law

    De Moivre's law first appeared in his 1725 Annuities upon Lives, the earliest known example of an actuarial textbook. [6] Despite the name now given to it, de Moivre himself did not consider his law (he called it a "hypothesis") to be a true description of the pattern of human mortality.