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Probability Theory

Valószínűségszámítás
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
Subject name (Hungarian, English)
Valószínűségszámítás
Probability Theory
Subject code BMEVISZAB00
Subject type
Training Level
Course types and hours (weekly/semester)
Course type lecture tutorial laboratory
hours (weekly) 2 2 0
type (linked/independent) derived course
Assessment type vizsga
Credits 4
Subject coordinator
Csehi Csongor György
position: tanársegéd
Responsible department
Számítástudományi és Információelméleti Tanszék
Faculty Villamosmérnöki és Informatikai Kar
Subject website www.cs.bme.hu/~kela/ind1
Primary curriculum type
Direct prerequisites – Strong prerequisite none
Direct prerequisites – Weak prerequisite none
Direct prerequisites – Parallel prerequisite none
Direct prerequisites – Milestone prerequisite none
Direct prerequisites – Exclusion none

Objectives

Programme
  1. Historical introduction. Basic concepts: random experiment, event space, event, elementary event, operation between events, axioms, sigma algebra

  2. Properties of probability: Poincare-rule, Boole’s inequalities, continuity of probability

  3. Conditonial probability, independency of events, Theorem of total probability, Bayes’s Theorem, produce theory

  4. Classical probability, geometrical probability. Examples for application: urn models, Buffon’s needle

  5. Random variable, probability distribution function, discrete and continouos cases, properties of the distribution function, probability of falling in an interval, discrete distribution, probability density function

  6. Notable discrete random variables: binomial, Poisson, geometrical.  Poisson approximation to the binomial distribution. Memoryless properties of the geometric distribution

  7. Notable continouos distributions: uniform, exponential, normal. Simulation with uniform distribution. Memoriless property of the exponential distribution. Standard normal distribution. Linear transformation

  8. Expected value, deviation, moments.  Theorems for expected value and deviation. Expected value and deviation of notable dispersions.

  9. Steiner’s Theorem, Markov’s- and Chebisev’s inequalities.

  10. Joint distribution function, projective distribution functions. Independency, convolution (discrete and continouos cases), Joint density function, projective density function

  11. Theorems of large numbers: Weak- and Stronge Law of Large Numbers. Central limit theorems, Moivre-Laplace’s Theorem

  12. Covariance, correlation. Properties of covariance and correlations. Connection between independency and uncorrelatedness

  13. Conditional distribution, conditional expectation (regression). Linear regression. Properties of regression. Examples of discrete and continouos cases

  14. Two-dimensional normal distribution,  polynomial distribution. Connection of the independency and uncorrelatedness in normal case. Projections of the polinomial distribution are binomials

Learning the basics of stochastic modeling

Learning outcomes

Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:

Knowledge

No learning outcomes recorded.

Skills

No learning outcomes recorded.

Attitudes

No learning outcomes recorded.

Autonomy and responsibility

No learning outcomes recorded.

Oktatási módszertan

2 lectures +2 practises per week

Tanulástámogató anyagok

Online források
Grinstead, C. M.- Snell, J. L. : Introduction to Probability, American; Mathematical Society, ISBN: 0821807498 (https://www.dartmouth.edu/~chance/teaching_aids/books_articles/probability_book/amsbook.mac.pdf)

Recommended preliminary knowledge for completing the subject

Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
calculus
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
calculus
General rules
Requirements: Semester-period:   mandatory participation in the practices (TVSZ 14§ (3)). During the semester two mid-term tests it will take place, at least sufficient to fulfill them individually (40%) of the signature condition.   Exam-period:   The exam is written. The results of the examination paper and midterm tests 50% to 50% counted in mark of the exam. Evaluation: the total score of 40% -54%: 2                             55% -69% : 3,                             70% -84%: 4,                             85% to 100%: 5th In case of at least two mark for  exam paper, it is possible to change in one mark in oral exam. Additional possibilities: One replacement option belong for every midterm tests. It can be replaced in the case of failed test or the absences. Only one of the two midterm tests can be replaced. Everyone can try to write again the unsuccessful paper on the signature supplementary exam.
Assessment methods
In-term assessments

No detailed assessments provided.

Weight of in-term assessments

No weights provided.

Exam-period assessments

No detailed assessments provided.

Weight of exam elements

No weights provided.

Grade calculation

No grade thresholds provided.

Attendance requirements

No attendance requirements provided.

Rules for retake and resubmission

Not provided.

Short description

Not provided.

Detailed description

Not provided.

Recommended courses
The studets must perfom subjects BMETE90AX21 and BMEVISZA208
Workload to complete the subject

No workload breakdown provided.

Validity of subject requirements
Requirements valid from:
Requirements valid until:
Curriculum placement

No curriculum placements recorded for this subject version.