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  2. Estimated date of delivery - Wikipedia

    en.wikipedia.org/wiki/Estimated_date_of_delivery

    The estimated date of delivery ( EDD ), also known as expected date of confinement, [1] and estimated due date or simply due date, is a term describing the estimated delivery date for a pregnant woman. [2] Normal pregnancies last between 38 and 42 weeks. [3] Children are delivered on their expected due date about 4% of the time.

  3. Birthday problem - Wikipedia

    en.wikipedia.org/wiki/Birthday_problem

    The expected number of people needed until every birthday is achieved is called the Coupon collector's problem. It can be calculated by nH n, where H n is the n th harmonic number. For 365 possible dates (the birthday problem), the answer is 2365. Near matches

  4. Life expectancy - Wikipedia

    en.wikipedia.org/wiki/Life_expectancy

    1) The curtate future lifetime , denoted K (x) {\displaystyle K(x)} , is a discrete random variable representing the remaining lifetime at age x {\displaystyle x} , rounded down to whole years. Life expectancy, more technically called the curtate expected lifetime and denoted e x {\displaystyle \,e_{x}\!} , [a] is the mean of K (x) {\displaystyle K(x)} —that is to say, the expected number of ...

  5. List of U.S. states and territories by life expectancy

    en.wikipedia.org/wiki/List_of_U.S._states_and...

    Data in the 2010 columns comes from Health Data. [5] Overall, life expectancy at birth in Hawaii, Washington, California, and New York (state) are among the longest in the nation, while life expectancy at birth in Mississippi, American Samoa, and West Virginia are among the shortest in the nation. The life expectancy in some states has fallen ...

  6. Gestational age - Wikipedia

    en.wikipedia.org/wiki/Gestational_age

    Gestational age. In obstetrics, gestational age is a measure of the age of a pregnancy taken from the beginning of the woman's last menstrual period (LMP), [1] or the corresponding age of the gestation as estimated by a more accurate method, if available. Such methods include adding 14 days to a known duration since fertilization (as is ...

  7. Projections of population growth - Wikipedia

    en.wikipedia.org/wiki/Projections_of_population...

    The table below shows that from 2020 to 2050 and beyond to 2100, the bulk of the world's population growth is projected to take place in Africa. Of the additional 1.9 billion people projected between 2020 and 2050, 1.2 billion will be added in Africa, 0.7 billion in Asia and zero in the rest of the world.

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