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  2. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    Slope may still be expressed when the horizontal run is not known: the rise can be divided by the hypotenuse (the slope length). This is not the usual way to specify slope; this nonstandard expression follows the sine function rather than the tangent function, so it calls a 45 degree slope a 71 percent grade instead of a 100 percent. But in ...

  3. 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 ...

  4. Grading systems by country - Wikipedia

    en.wikipedia.org/wiki/Grading_systems_by_country

    Belgian secondary schools use a scale from 0 to 100 or even above for exams (50 usually being the passing grade). On report cards, certain schools also give grades on a percentage scale (0 to 100) while others use a 0–10 scale. Those total scores are weighted averages of exams and tests. In Belgian secondary schools, there are 6 years.

  5. Probability - Wikipedia

    en.wikipedia.org/wiki/Probability

    [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. A simple example is the tossing of a fair (unbiased) coin.

  6. 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 ...

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

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

    Under-five mortality rate per 1,000 live births (OECD-World Bank, 2020) LOCATION 2020 rate Australia 3.7 Austria 3.6 Belgium 4.2 Canada 5.0 Chile 6.8 Colombia 13.2 ...

  8. Sheep - Wikipedia

    en.wikipedia.org/wiki/Sheep

    Ewes typically weigh between 45 and 100 kilograms (100 and 220 lb), and rams between 45 and 160 kilograms (100 and 350 lb). [25] When all deciduous teeth have erupted, the sheep has 20 teeth. [26] Mature sheep have 32 teeth. As with other ruminants, the front teeth in the lower jaw bite against a hard, toothless pad in the upper jaw.

  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]