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A plot of normal distribution (or bell-shaped curve) where each band has a width of 1 standard deviation – See also: 68–95–99.7 rule. Cumulative probability of a normal distribution with expected value 0 and standard deviation 1 In statistics, the standard deviation is a measure of the amount of variation of a random variable expected about its mean.
Binomial distribution for = with n and k as in Pascal's triangleThe probability that a ball in a Galton box with 8 layers (n = 8) ends up in the central bin (k = 4) is /. In probability theory and statistics, the binomial distribution with parameters n and p is the discrete probability distribution of the number of successes in a sequence of n independent experiments, each asking a yes–no ...
Four UN members (Cuba, Liechtenstein, Monaco and North Korea) do not belong to the IMF hence their economies are not ranked below. Kosovo, despite not being a member of the United Nations, is a member of IMF. Taiwan is not a IMF member but it is still listed in the official IMF indices. Several leading GDP-per-capita (nominal) jurisdictions may ...
- Name
- History
- Use in Writing Systems
- Related Characters
- Other Representations
- See Also
- External Links
English
For most English speakers, the name for the letter is pronounced as /eɪtʃ/ and spelled "aitch" or occasionally "eitch". The pronunciation /heɪtʃ/ and the associated spelling "haitch" is often considered to be h-adding and is considered non-standard in England. It is, however, a feature of Hiberno-English,and occurs sporadically in various other dialects. The perceived name of the letter affects the choice of indefinite article before initialisms beginning with H: for example "an H-bomb" or "a...
Other languages
1. French: ache /aʃ/ 2. German: ha /haː/ 3. Portuguese: agá [ɐˈɣa,aˈɡa] 4. Spanish: hache ['atʃe]
The original Semitic letter Heth most likely represented the voiceless pharyngeal fricative (ħ). The form of the letter probably stood for a fence or posts. The Greek Eta 'Η' in archaic Greek alphabets, before coming to represent a long vowel, /ɛː/, still represented a similar sound, the voiceless glottal fricative /h/. In this context, the letter ...
English
In English, ⟨h⟩ occurs as a single-letter grapheme (being either silent or representing the voiceless glottal fricative /h/ and in various digraphs: 1. ⟨ch⟩ representing /tʃ/, /ʃ/, /k/, or /x/ 2. ⟨gh⟩ being silent or representing /ɡ/, /k/, /p/, or /f/ 3. ⟨ph⟩ representing /f/ 4. ⟨rh⟩ representing /r/ 5. ⟨sh⟩ representing /ʃ/ 6. ⟨th⟩ representing /θ/ or /ð/ 7. ⟨wh⟩ representing /hw/ or /h/ The letter is silent in a syllable rime, as in ah, ohm, dahlia, cheetah, pooh-poohed, as well as in certa...
Other languages
In German, following a vowel, it often silently indicates that the vowel is long: In the word erhöhen ('heighten'), the second ⟨h⟩ is mute for most speakers outside of Switzerland. In 1901, a spelling reform eliminated the silent ⟨h⟩ in nearly all instances of ⟨th⟩ in native German words such as thun ('to do') or Thür ('door'). It has been left unchanged in words derived from Greek, such as Theater ('theater') and Thron ('throne'), which continue to be spelled with ⟨th⟩even after the last Ger...
Other systems
As a phonetic symbol in the International Phonetic Alphabet (IPA), it is used mainly for the so-called aspirations (fricative or trills), and variations of the plain letter are used to represent two sounds: the lowercase form ⟨h⟩ represents the voiceless glottal fricative, and the small capital form ⟨ʜ⟩ represents the voiceless epiglottal fricative (or trill). With a bar, minuscule ⟨ħ⟩ is used for a voiceless pharyngeal fricative. Specific to the IPA, a hooked ⟨ɦ⟩ is used for a voiced glottal...
Descendants and related characters in the Latin alphabet
1. H with diacritics: Ĥ ĥ Ȟ ȟ Ħ ħ Ḩ ḩ Ⱨ ⱨ ẖ ẖ Ḥ ḥ Ḣ ḣ Ḧ ḧ Ḫ ḫ ꞕ Ꜧ ꜧ 2. IPA-specific symbols related to H: ʜ ɦ ʰ ʱ ɥ ᶣ ɧ 3. Superscript IPA symbols related to H:𐞖 𐞕 4. ꟸ: Modifier letter capital H with stroke is used in VoQS to represent faucalized voice. 5. ᴴ : Modifier letter H is used in the Uralic Phonetic Alphabet 6. ₕ : Subscript small h was used in the Uralic Phonetic Alphabet prior to its formal standardization in 1902 7. ʰ : Modifier letter small h is used in Indo-European studies 8...
Ancestors, siblings, and descendants in other alphabets
1. 𐤇 : Semitic letter Heth, from which the following symbols derive 1.1. Η η : Greek letter Eta, from which the following symbols derive 1.1.1. 𐌇 : Old Italic H, the ancestor of modern Latin H 1.1.1.1. ᚺ, ᚻ : Runic letter haglaz, which is probably a descendant of Old Italic H 1.1.2. Һ һ : Cyrillic letter Shha, which derives from Latin H 1.1.3. И и : Cyrillic letter И, which derives from the Greek letter Eta 1.1.4. 𐌷 : Gothicletter haal 1.1.5. Armenian letter ho (Հ)[citation needed]
Derived signs, symbols, and abbreviations
1. h : Planck constant 2. ℏ : reduced Planck constant 3. H {\displaystyle \mathbb {H} } : Blackboard bold capital H used in quaternionnotation
Computing
1and all encodings based on ASCII, including the DOS, Windows, ISO-8859, and Macintosh families of encodings.
The dictionary definition of Hat WiktionaryThe dictionary definition of hat WiktionaryThe United States had an official estimated resident population of 334,914,895 on July 1, 2023, according to the U.S. Census Bureau. This figure includes the 50 states and the Washington, D.C. but excludes the population of five unincorporated U.S. territories (Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, and the Northern Mariana Islands) as well as several minor island possessions.
The Organisation for Economic Co-operation and Development (OECD; French: Organisation de coopération et de développement économiques, OCDE) is an intergovernmental organisation with 38 member countries,[1][4] founded in 1961 to stimulate economic progress and world trade. It is a forum whose member countries describe themselves as ...
Example of samples from two populations with the same mean but different variances. The red population has mean 100 and variance 100 (SD=10) while the blue population has mean 100 and variance 2500 (SD=50) where SD stands for Standard Deviation. In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable.
