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  2. Division (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Division_(mathematics)

    In terms of partition, 20 / 5 means the size of each of 5 parts into which a set of size 20 is divided. For example, 20 apples divide into five groups of four apples, meaning that "twenty divided by five is equal to four". This is denoted as 20 / 5 = 4, or ⁠ 20 / 5 ⁠ = 4. [2] In the example, 20 is the dividend, 5 is the divisor, and 4 is ...

  3. Probability - Wikipedia

    en.wikipedia.org/wiki/Probability

    The probability of an event is a number between 0 and 1; the larger the probability, the more likely an event is to occur. [note 1] [1] [2] This number is often expressed as a percentage (%), ranging from 0% to 100%. A simple example is the tossing of a fair (unbiased) coin.

  4. Odds - Wikipedia

    en.wikipedia.org/wiki/Odds

    Thus if expressed as a fraction with a numerator of 1, probability and odds differ by exactly 1 in the denominator: a probability of 1 in 100 (1/100 = 1%) is the same as odds of 1 to 99 (1/99 = 0.0101... = 0. 01), while odds of 1 to 100 (1/100 = 0.01) is the same as a probability of 1 in 101 (1/101 = 0.00990099... = 0. 0099). This is a minor ...

  5. List of countries by infant and under-five mortality rates

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

    The infant mortality rate of the world in 2019 was 28 according to the United Nations [4] and the projected estimate for 2020 was 30.8 according to the CIA World Factbook. [ 5 ] Note that due to differences in reporting, these numbers may not be comparable across countries.

  6. Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia

    The article in The New York Times reported the comparison statistics for mobile edits stating that, "Only 20 percent of the readership of the English-language Wikipedia comes via mobile devices, a figure substantially lower than the percentage of mobile traffic for other media sites, many of which approach 50 percent. And the shift to mobile ...

  7. Grading systems by country - Wikipedia

    en.wikipedia.org/wiki/Grading_systems_by_country

    Example: Sample grades: (Maths 13.33/20, English 13.4/20, Biology 8.25/20) English: 5 credits × 13.4 = 67 out of possible 100 Math: 6 credits × 13.33 = 79.98 out of possible 120 Biology: 2 credits × 8.25 = 16.5 out of possible 40 Total points earned = 163.48 out of possible 260

  8. Economics - Wikipedia

    en.wikipedia.org/wiki/Economics

    The earlier term for the discipline was "political economy", but since the late 19th century, it has commonly been called "economics". [22] The term is ultimately derived from Ancient Greek οἰκονομία (oikonomia) which is a term for the "way (nomos) to run a household (oikos)", or in other words the know-how of an οἰκονομικός (oikonomikos), or "household or homestead manager".

  9. Obesity - Wikipedia

    en.wikipedia.org/wiki/Obesity

    People are classified as obese when their body mass index (BMI)—a person's weight divided by the square of the person's height—is over 30 kg/m 2; the range 25–30 kg/m 2 is defined as overweight. [1] Some East Asian countries use lower values to calculate obesity. [11]