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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male. Example 2. An increase of $0.15 on a price of $2.50 is an increase by a fraction of 0.15 / 2.50 = 0.06. Expressed as a percentage, this is a 6% increase.

  3. Baby boomers - Wikipedia

    en.wikipedia.org/wiki/Baby_boomers

    A 2020 study by sociologist Hui Zheng suggests that early US baby boomers (born between the late-1940s and early-1950s) and middle baby boomers (born between the mid- to late-1950s) had significant cognitive decline at age 50 and over compared to their elders, though the generations born before and during the Second World War had increasing ...

  4. Life expectancy - Wikipedia

    en.wikipedia.org/wiki/Life_expectancy

    For the 55-65% surviving to age 5, remaining life expectancy reached around 40–45, while the ~50% reaching age 10 could expect another 40 years of life. Average remaining years fell to 33–39 at age 15; ~20 at age 40; 14–18 at age 50; ~10–12 at age 60; and ~6–7 at age 70. Wang clan of China, 1st century AD – 1749: 35

  5. 73 best discounts for ages 50+: Where to save money for ... - AOL

    www.aol.com/finance/best-senior-discounts...

    Ages 50 and older. Hertz — 20% off base rate. Sixt — 5% discount. Thrifty — 5% discount on time and mileage charges. Ages 55 and older. Advantage — 10% off base rate. Miscellaneous travel ...

  6. Adolescence - Wikipedia

    en.wikipedia.org/wiki/Adolescence

    Age provides only a rough marker of adolescence, and scholars have not agreed upon a precise definition. Some definitions start as early as 10 and end as late as 30. [6] [7] [8] The World Health Organization definition officially designates an adolescent as someone between the ages of 10 and 19.

  7. Dependency ratio - Wikipedia

    en.wikipedia.org/wiki/Dependency_ratio

    As of 2010, Japan and Europe had high aged dependency ratios (that is over 65 as % of workforce) compared to other parts of the world. In Europe 2010, for every adult aged 65 and older there are approximately four working age adults (15-64); This ratio (one:four, or 25%) is expected to decrease to one:two, or 50%, by 2050.

  8. Age and female fertility - Wikipedia

    en.wikipedia.org/wiki/Age_and_female_fertility

    Age and female fertility. Female fertility is affected by age and is a major fertility factor for women. A woman's fertility is in generally good quality from the late teens to early thirties, although it declines gradually over time. [1] Around 35, fertility is noted to decline at a more rapid rate. [1] At age 45, a woman starting to try to ...

  9. Age of majority - Wikipedia

    en.wikipedia.org/wiki/Age_of_majority

    The age of majority is the threshold of legal adulthood as recognized or declared in law. [1] It is the moment when a person ceases to be considered a minor and assumes legal control over their person, actions, and decisions, thus terminating the control and legal responsibilities of their parents or guardian over them.

  10. Percentage point - Wikipedia

    en.wikipedia.org/wiki/Percentage_point

    Percentage point. A percentage point or percent point is the unit for the arithmetic difference between two percentages. For example, moving up from 40 percent to 44 percent is an increase of 4 percentage points (although it is a 10-percent increase in the quantity being measured, if the total amount remains the same). [1]

  11. Generation Z - Wikipedia

    en.wikipedia.org/wiki/Generation_Z

    Generation Z (often shortened to Gen Z), colloquially known as Zoomers, is the demographic cohort succeeding Millennials and preceding Generation Alpha.Researchers and popular media use the mid-to-late 1990s as starting birth years and the early 2010s as ending birth years.