Probability theory

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Probability theory

Quality:

Probability theory - branch of mathematics concerning probability. Article “Probability theory” in Simple English Wikipedia has 40.2 points for quality (as of July 1, 2026). The article contains 27 references and 4 sections.

This article has the best quality in French Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Probability theory”, its content was written by 14 registered users of Simple English Wikipedia and edited by 2356 registered Wikipedia users in all languages.

The article is cited 72 times in Simple English Wikipedia and cited 14889 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #928 in January 2021
  • Global: #18 in February 2001

The highest popularity rank from 2008:

  • Local (Simple English): #3082 in June 2010
  • Global: #6467 in June 2010

There are 53 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1French (fr)
Théorie des probabilités
76.3968
2English (en)
Probability theory
43.5476
3Catalan (ca)
Teoria de la probabilitat
41.048
4Chinese (zh)
概率论
40.6878
5Simple English (simple)
Probability theory
40.1505
6German (de)
Wahrscheinlichkeitstheorie
38.9601
7Ukrainian (uk)
Теорія ймовірностей
35.3318
8Malay (ms)
Teori kebarangkalian
34.7248
9Finnish (fi)
Todennäköisyysteoria
30.6413
10Russian (ru)
Теория вероятностей
29.4365
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Probability theory" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Probability theory
5 455 710
2Russian (ru)
Теория вероятностей
3 398 207
3Spanish (es)
Teoría de la probabilidad
2 889 401
4German (de)
Wahrscheinlichkeitstheorie
1 836 177
5Japanese (ja)
確率論
811 976
6Chinese (zh)
概率论
723 561
7Arabic (ar)
نظرية الاحتمال
707 527
8French (fr)
Théorie des probabilités
639 245
9Polish (pl)
Teoria prawdopodobieństwa
571 205
10Portuguese (pt)
Teoria das probabilidades
485 955
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Probability theory" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Probability theory
9 244
2Russian (ru)
Теория вероятностей
3 268
3German (de)
Wahrscheinlichkeitstheorie
2 148
4Spanish (es)
Teoría de la probabilidad
1 419
5Chinese (zh)
概率论
1 350
6French (fr)
Théorie des probabilités
1 281
7Japanese (ja)
確率論
1 025
8Polish (pl)
Teoria prawdopodobieństwa
758
9Dutch (nl)
Kansrekening
437
10Italian (it)
Teoria della probabilità
421
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Probability theory" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Probability theory
314
2German (de)
Wahrscheinlichkeitstheorie
216
3Russian (ru)
Теория вероятностей
154
4French (fr)
Théorie des probabilités
138
5Spanish (es)
Teoría de la probabilidad
130
6Chinese (zh)
概率论
101
7Dutch (nl)
Kansrekening
78
8Italian (it)
Teoria della probabilità
73
9Japanese (ja)
確率論
64
10Hungarian (hu)
Valószínűségszámítás
62
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Probability theory" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Arabic (ar)
نظرية الاحتمال
1
2Belarusian (be)
Тэорыя імавернасцей
1
3Catalan (ca)
Teoria de la probabilitat
1
4English (en)
Probability theory
1
5Basque (eu)
Probabilitate teoria
1
6Serbian (sr)
Теорија вероватноће
1
7Azerbaijani (az)
Ehtimal nəzəriyyəsi
0
8Bulgarian (bg)
Теория на вероятностите
0
9Czech (cs)
Teorie pravděpodobnosti
0
10Danish (da)
Sandsynlighedsregning
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Probability theory" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Probability theory
2 006
2French (fr)
Théorie des probabilités
1 140
3Ukrainian (uk)
Теорія ймовірностей
1 039
4German (de)
Wahrscheinlichkeitstheorie
835
5Russian (ru)
Теория вероятностей
693
6Japanese (ja)
確率論
654
7Portuguese (pt)
Teoria das probabilidades
500
8Arabic (ar)
نظرية الاحتمال
472
9Persian (fa)
نظریه احتمالات
467
10Polish (pl)
Teoria prawdopodobieństwa
459
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2026:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2026:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
نظرية الاحتمال
azAzerbaijani
Ehtimal nəzəriyyəsi
beBelarusian
Тэорыя імавернасцей
bgBulgarian
Теория на вероятностите
caCatalan
Teoria de la probabilitat
csCzech
Teorie pravděpodobnosti
daDanish
Sandsynlighedsregning
deGerman
Wahrscheinlichkeitstheorie
elGreek
Θεωρία πιθανοτήτων
enEnglish
Probability theory
eoEsperanto
Probablo-teorio
esSpanish
Teoría de la probabilidad
etEstonian
Tõenäosusteooria
euBasque
Probabilitate teoria
faPersian
نظریه احتمالات
fiFinnish
Todennäköisyysteoria
frFrench
Théorie des probabilités
glGalician
Teoría da probabilidade
heHebrew
תורת ההסתברות
hiHindi
प्रायिकता सिद्धांत
hrCroatian
Teorija vjerojatnosti
huHungarian
Valószínűségszámítás
hyArmenian
Հավանականությունների տեսություն
idIndonesian
Teori peluang
itItalian
Teoria della probabilità
jaJapanese
確率論
kaGeorgian
ალბათობის თეორია
kkKazakh
Ықтималдық теориясы
koKorean
확률론
laLatin
Theoria probabilitatum
ltLithuanian
Tikimybių teorija
msMalay
Teori kebarangkalian
nlDutch
Kansrekening
nnNorwegian (Nynorsk)
Sannsynsrekning
noNorwegian
Sannsynlighetsteori
plPolish
Teoria prawdopodobieństwa
ptPortuguese
Teoria das probabilidades
roRomanian
Teoria probabilităților
ruRussian
Теория вероятностей
shSerbo-Croatian
Teorija vjerovatnoće
simpleSimple English
Probability theory
skSlovak
Teória pravdepodobnosti
slSlovenian
Verjetnostni račun
srSerbian
Теорија вероватноће
svSwedish
Sannolikhetsteori
taTamil
நிகழ்தகவுக் கோட்பாடு
thThai
ทฤษฎีความน่าจะเป็น
trTurkish
Olasılık teorisi
ukUkrainian
Теорія ймовірностей
urUrdu
نظریۂ احتمال
uzUzbek
Ehtimollar nazariyasi
viVietnamese
Lý thuyết xác suất
zhChinese
概率论

Popularity rank trends

Best Rank Simple English:
#3082
06.2010
Global:
#6467
06.2010

AI rank trends

Best Rank Simple English:
#928
01.2021
Global:
#18
02.2001

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Probability theory from Wikipedia articles about Probability, Blaise Pascal, Statistics, Andrey Kolmogorov and Stochastic. Whereas reading the article about Probability theory people most often go to Wikipedia articles on Probability, Probability axioms, Law of large numbers, Probability distribution and Probability space.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, List of sex positions, 2026 Iran war, Suresh Raina, Politics of Germany, Academy Award for Best Director, 2020, DYSS-TV, 2022.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information