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  2. Standardized mortality ratio - Wikipedia

    en.wikipedia.org/wiki/Standardized_mortality_ratio

    Standardized mortality rate tells how many persons, per thousand of the population, will die in a given year and what the causes of death will be. Such statistics have many uses: [ citation needed ] Life insurance companies periodically update their premiums based on the mortality rate , adjusted for age.

  3. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    Note however, that specific disciplines such as oceanography, as well as educational exercises, do use the "ppt" abbreviation. "One part per thousand" denotes one part per 1,000 (10 3) parts, and a value of 10 −3. This is equivalent to about ninety seconds out of one day. One part per ten thousand is denoted by the permyriad sign (‱).

  4. Incidence (epidemiology) - Wikipedia

    en.wikipedia.org/wiki/Incidence_(epidemiology)

    You also want to account for the 150 people who never had or developed HIV over the 10-year period, (150 * 10) contributing 1500 person-years of disease-free life. That is a total of (1500 + 275) = 1775 person-years of life. Now take the 50 new cases of HIV, and divide by 1775 to get 0.028, or 28 cases of HIV per 1000 population, per year.

  5. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    Thus, in the above example, after an increase and decrease of x = 10 percent, the final amount, $198, was 10% of 10%, or 1%, less than the initial amount of $200. The net change is the same for a decrease of x percent, followed by an increase of x percent; the final amount is p (1 - 0.01 x )(1 + 0.01 x ) = p (1 − (0.01 x ) 2 ) .

  6. Birth rate - Wikipedia

    en.wikipedia.org/wiki/Birth_rate

    The death rate was 7.9 per 1,000. [8] The RNI was thus 0.91 percent. In 2012, the average global birth rate was 19.611 per 1,000 according to the World Bank [9] and 19.15 births per 1,000 total population according to the CIA, [10] compared to 20.09 per 1,000 total population in 2007. [11]

  7. List of countries by energy consumption per capita - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Social Progress Index vs Energy Use per capita, 2015. List of countries by Social Progress Index. World energy consumption per capita based on 2021 data. This is a list of countries by total energy consumption per capita. This is not the consumption of end-users but all energy needed as input to produce fuel and electricity for end-users.

  8. Per mille - Wikipedia

    en.wikipedia.org/wiki/Per_mille

    The word promille is the cognate in Dutch, German, Finnish and Swedish, and is sometimes seen as a loanword in English with the same meaning as per mille. [7] [4] The symbol is included in the General Punctuation block of Unicode at U+2030 ‰ PER MILLE SIGN. [5] There is also an Arabic-Indic per mille sign at U+0609 ؉ ARABIC-INDIC PER MILLE SIGN.

  9. Population proportion - Wikipedia

    en.wikipedia.org/wiki/Population_Proportion

    In statistics a population proportion, generally denoted by or the Greek letter, [1] is a parameter that describes a percentage value associated with a population.A census can be conducted to determine the actual value of a population parameter, but often a census is not practical due to its costs and time consumption.