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  2. Doomsday argument - Wikipedia

    en.wikipedia.org/wiki/Doomsday_argument

    Assume, for simplicity, that the total number of humans who will ever be born is 60 billion (N 1), or 6,000 billion (N 2). [6]If there is no prior knowledge of the position that a currently living individual, X, has in the history of humanity, one may instead compute how many humans were born before X, and arrive at say 59,854,795,447, which would necessarily place X among the first 60 billion ...

  3. Human population projections - Wikipedia

    en.wikipedia.org/wiki/Human_population_projections

    As of 2016, 757 million people live in the 101 largest cities; [41] these cities are home to 11% of the world's population. [41] By the end of the century, the world population is projected to grow, with estimates ranging from 6.9 billion to 13.1 billion; [41] the percentage of people living in the 101 largest cities is estimated to be 15% to ...

  4. World population milestones - Wikipedia

    en.wikipedia.org/wiki/World_population_milestones

    Long-range predictions to 2055 range from a population decline to 3.2 billion in the 'low scenario', to 'high scenarios' of 24.8 billion. One scenario predicts a massive increase to 256 billion by 2050, assuming fertility remains at 1995 levels. [6]

  5. Demographics of the world - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_the_world

    People under 15 years of age made up over a quarter of the world population (25.18%), and people age 65 and over made up nearly ten percent (9.69%) in 2021. [5] The world's literacy rate has increased dramatically in the last 40 years, from 66.7% in 1979 to 86.3% today. [13]

  6. Over–under - Wikipedia

    en.wikipedia.org/wiki/Over–under

    A variant of over-under betting, known as Under Over, [5] is a dice game played at various festivals. The object of the game is to predict whether the dice will roll to a total of under 7, over 7, or at 7. The game is typically played with 2 dice. A player typically places a wager on one of three spaces. These spaces are: Under 7 (usually pays ...

  7. Football pools - Wikipedia

    en.wikipedia.org/wiki/Football_pools

    In 1972, two people won approximately £1.5 million each on the state run Italian pools. [9] In September 1975, Miron Vieira de Sousa, from the city of Ivolândia in Brazil, won a prize of 22 million Brazilian cruzeiros ($2.5 million), considered at the time "the biggest prize in Loteca and in the world, in prediction contests". [33]

  8. Wins above replacement - Wikipedia

    en.wikipedia.org/wiki/Wins_Above_Replacement

    A replacement-level player is defined by FanGraphs as contributing 17.5 runs fewer than a player of league-average performance, over 600 plate appearances. [4] Therefore, a 1.0 WAR player has contributed an estimated −7.5 runs relative to average over the same number of plate appearances, a 2.0 WAR player has contributed +2.5 runs, and a 5.0 ...

  9. Asian handicap - Wikipedia

    en.wikipedia.org/wiki/Asian_handicap

    Asian handicaps start at a quarter-goal and can go as high as 2.5 or 3 goals in matches with a huge disparity in ability. What makes Asian handicaps most interesting is the use of quarter goals to get the "line" as close as possible. Taken in conjunction with the posted total for the game, the handicap essentially predicts the game's final score.