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  2. Scientific notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_notation

    To represent the number 1,230,400 in normalized scientific notation, the decimal separator would be moved 6 digits to the left and × 10 6 appended, resulting in 1.2304 × 10 6. The number −0.004 0321 would have its decimal separator shifted 3 digits to the right instead of the left and yield −4.0321 × 10 −3 as a result.

  3. Percentile - Wikipedia

    en.wikipedia.org/wiki/Percentile

    In statistics, a k-th percentile, also known as percentile score or centile, is a score (e.g., a data point) below which a given percentage k of arranged scores in its frequency distribution falls ("exclusive" definition) or a score at or below which a given percentage falls ("inclusive" definition); i.e. a score in the k-th percentile would be above approximately k% of all scores in its set.

  4. Repeating decimal - Wikipedia

    en.wikipedia.org/wiki/Repeating_decimal

    For example, in duodecimal, ⁠ 1 / 2 ⁠ = 0.6, ⁠ 1 / 3 ⁠ = 0.4, ⁠ 1 / 4 ⁠ = 0.3 and ⁠ 1 / 6 ⁠ = 0.2 all terminate; ⁠ 1 / 5 ⁠ = 0. 2497 repeats with period length 4, in contrast with the equivalent decimal expansion of 0.2; ⁠ 1 / 7 ⁠ = 0. 186A35 has period 6 in duodecimal, just as it does in decimal. If b is an integer base ...

  5. Earth's energy budget - Wikipedia

    en.wikipedia.org/wiki/Earth's_energy_budget

    Ultimately, all outgoing energy is radiated into space in the form of longwave radiation. The transport of longwave radiation from Earth's surface through its multi-layered atmosphere is governed by radiative transfer equations such as Schwarzschild's equation for radiative transfer (or more complex equations if scattering is present) and obeys ...

  6. Radioactive decay - Wikipedia

    en.wikipedia.org/wiki/Radioactive_decay

    In principle a half-life, a third-life, or even a (1/√2)-life, could be used in exactly the same way as half-life; but the mean life and half-life t 1/2 have been adopted as standard times associated with exponential decay. Those parameters can be related to the following time-dependent parameters:

  7. One Laptop per Child - Wikipedia

    en.wikipedia.org/wiki/One_Laptop_per_Child

    XO-3 production model. The XO-2 two sheet design concept was canceled in favor of the one sheet XO-3. [50] An XO-3 concept resembled a tablet computer and was planned to have the inner workings of the XO 1.75. [51] Price goal was below $100 and date was 2012. [52] As of May 2010, OLPC was working with Marvell on other unspecified future tablet ...

  8. Economy of Indonesia - Wikipedia

    en.wikipedia.org/wiki/Economy_of_Indonesia

    Despite a slowing global economy, Indonesia's economic growth accelerated to a ten-year high of 6.3% in 2007. This growth rate was sufficient to reduce poverty from 17.8% to 16.6% based on the government's poverty line and reversed the recent trend towards jobless growth , with unemployment falling to 8.46% in February 2008.

  9. Standardized test - Wikipedia

    en.wikipedia.org/wiki/Standardized_test

    Teacher #1: This answer mentions one of the required items, so it is correct. Teacher #2: This answer is correct. Teacher #1: I feel like this answer is good enough, so I'll mark it correct. Teacher #2: This answer is correct, but this good student should be able to do better than that, so I'll only give partial credit.