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  2. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the population mean or expected value in probability and statistics; a measure in measure theory; micro-, an SI prefix denoting 10 −6 (one millionth) Micrometre or micron (retired in 1967 as a standalone symbol, replaced by "μm" using the standard SI meaning) the coefficient of friction in physics; the service rate in queueing theory

  3. List of Greek regions by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_Greek_regions_by...

    The vast majority of European countries achieved best values in life expectancy in 2019, the last year before the COVID-19 pandemic. Greece is rare exception to this pattern - in it, the peak of the average life expectancy occurred in 2018.

  4. List of countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_life...

    This is especially true for Healthy life expectancy, the definition of which criteria may change over time, even within a country. For example, Canada is a country with a fairly high overall life expectancy at 81.63 years; however, this number decreases to 75.5 years for Indigenous people in the country. [4]

  5. Longevity - Wikipedia

    en.wikipedia.org/wiki/Longevity

    Longevity may refer to especially long-lived members of a population, whereas life expectancy is defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts).

  6. Life expectancy - Wikipedia

    en.wikipedia.org/wiki/Life_expectancy

    Life expectancy development in some big countries of the world since 1960 Life expectancy at birth, measured by region, between 1950 and 2050 Life expectancy by world region, from 1770 to 2018 Human life expectancy is a statistical measure of the estimate of the average remaining years of life at a given age.

  7. Physical Quality of Life Index - Wikipedia

    en.wikipedia.org/wiki/Physical_Quality_of_Life_Index

    The value is the average of three statistics: basic literacy rate , infant mortality, and life expectancy at age one, all equally weighted on a 1 to 100 scale. It was developed for the Overseas Development Council in the mid-1970s by M.D Morris, as one of a number of measures created due to dissatisfaction with the use of GNP as an indicator of ...

  8. Thoughts of suicide can be active or passive, but what is the ...

    www.aol.com/lifestyle/thoughts-suicide-active...

    What is passive suicidal ideation? Suicidal ideation (suicidal thoughts) exists on a spectrum: passive and active. Experts say the main difference between passive and active suicidal ideation is ...

  9. Participle (Ancient Greek) - Wikipedia

    en.wikipedia.org/wiki/Participle_(Ancient_Greek)

    The Ancient Greek participle is a non-finite nominal verb form declined for gender, number and case (thus, it is a verbal adjective) and has many functions in Ancient Greek. It can be active , middle or passive and can be used in the present , future , aorist and perfect tense; these tenses normally represent not absolute time but only time ...