Révisi nurutkeun 13 Pébruari 2017 07.54 édit Ilhambot (obrolan \| kontribusi) Bot 20.027 suntingan m →‎Sajarah: Ngarapihkeun éjahan, replaced: maneh → manéh ← Éditan saméméhna		Révisi nurutkeun 19 Maret 2017 05.59 édit bolaykeun Ilhambot (obrolan \| kontribusi) Bot 20.027 suntingan m Ngarapihkeun éjahan, replaced: beda → béda, meter → méter (3), model → modél Éditan salajengna →
Baris ka-4: '''Normal distribution''' (distribusi normal) mangrupa hal anu penting dina [[probability distribution]] di loba widang. Biasa ogé disebut '''Gaussian distribution''', hususna dina widang [[fisika]] jeung [[rékayasa]]. Dina kaayaan sabenerna kumpulan distribusi mibanda bentuk anu sarupa, ~~bedana~~bédana ngan dina ~~parameter~~paraméter ''location'' jeung ''scale'': [[nilai ekspektasi\|mean]] jeung [[simpangan baku]]. '''Standard normal distribution''' nyaéta distribusi normal anu mibanda nilai ''mean'' sarua jeung nol sarta nilai standar deviasi sarua jeung hiji. Sabab bentuk grafik [[fungsi dénsitas probabilitas\|dénsitas probabilitas]] mangrupa [[bell]], sering disebut '''bell curve'''. == Sajarah == Baris ka-117: The practical importance of the central limit théorem is that the normal distribution can be used as an approximation to some other distributions. * [[Sebaran binomial]] mibanda ~~parameter~~paraméter ''n'' sarta ''p'' ngadeukeutan kana normal keur ''n'' nu badag sarta ''p'' teu deukeut ka 1 atawa 0. ''Pendekatan'' sebaran normal mibanda méan μ = ''np'' sarta simpangan baku σ = (''n p'' (1 - ''p''))<sup>1/2</sup>. * A [[Poisson distribution]] with ~~parameter~~paraméter λ is approximately normal for large λ. The approximating normal distribution has méan μ = λ and standard deviation σ = √λ. Whether these approximations are sufficiently accurate depends on the purpose for which they are needed, and the rate of convergence to the normal distribution. Baris ka-164: === Physical characteristics of biological specimens === The overwhelming biological evidence is that bulk growth processes of living tissue proceed by multiplicative, not additive, increments, and that therefore méasures of body size should at most follow a lognormal rather than normal distribution. Despite common claims of normality, the sizes of plants and animals is approximately lognormal. The evidence and an explanation based on ~~models~~modéls of growth was first published in the classic book :Huxley, Julian: Problems of Relative Growth (1932)

Sebaran normal: Béda antarrépisi