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Probability Theory and Statistics

Valószínűségszámítás és statisztika
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
Subject name (Hungarian, English)
Valószínűségszámítás és statisztika
Probability Theory and Statistics
Subject code BMEVISZAB04
Subject type
Training Level
Course types and hours (weekly/semester)
Course type lecture tutorial laboratory
hours (weekly) 4 2 0
type (linked/independent) derived course
Assessment type vizsga
Credits 6
Subject coordinator
DR. Pintér Márta Barbara
position: egyetemi docens
Responsible department
Számítástudományi és Információelméleti Tanszék
Faculty Villamosmérnöki és Informatikai Kar
Subject website http://www.cs.bme.hu/probability
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. Elementary combinatorics: permutation, combination, variation.

Basic concepts: random experiment, event space, event, elementary event, operation between events, axioms

2.      Properties of probability: Poincare-rule, Boole’s inequalities, classical and geometrical probability field

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

4.   Random variable, probability distribution function, discrete distribution, expected value. Binomial, Poisson, geometrical distribution. Approximation of the Poisson distribution by the binomial distribution.

5.   Continouos cases, properties of the distribution function, probability density function, expected value, transformation of random variables.

6.   Notable continouos distributions: uniform, exponential. Simulation with uniform distribution. Memoriless property of the exponential and the geometric distribution. Variance, moments.

7.    Joint distribution function, projective distribution functions. Independency. Joint density function, projective density function. Covariance, correlation.

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

9.   Basics of mathematical statistics: sample, parameter, statistics. Properties of estimation: unbiased, consistency, efficiency

10. Estimation of average and variance, maximum likelihood, method of moments, nonparametric methods, empirical distribution function, regression estimation

11.  Theorems of large numbers, Markov’s- and Chebisev’s inequalities.

12.  Normal distribution, standardization. Central limit theorems, Moivre-Laplace’s Theorem

13.  Two-dimensional normal distribution. Connection of the independency and uncorrelatedness in normal case. Regression in case of normal distribution.

        14. Student distribution, confidential interval, parametric tests, hypothesis testing
Learn 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

4 hours lectures and 2 hours practices/week

Tanulástámogató anyagok

Not provided.

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: Period of study:   During the semester, a 120-point midterm test run will be written,  at least 40 points are required for the signature.   Exam period:  A 120-point final test run will be written, at least 40 points are required to pass the exam. The results of the semester interim test result and the examination result are included in the test result at ratio 40% -60%.   Evaluation: total score = 0.4*min(Midterm;100) + 0.6*min(Final;100). If the total score is        40-54 points sufficient (2), 55-69 points medium (3), 70-84 points good (4), 85-100 marks (5). In case of written exam’s result at least sufficient, it is possible to change 1 mark upwards and downwards, depending on the oral exam. Additional possibilities: The repetition option for the midterm test: the inadequate result can be improved or the missing result can be replaced in a retake test. If the student has not written a midterm test, writing the retake midterm test is compulsory. Without writing this he or she will not get signature from the subject. If someone has failed the midterm test, but does not participate in the substitution occasion, can try to get the signature for a replacement fee in the first week of the exam period. At the retake midterm test it is also possible to try to improve the reached results in case of a successful midterm test’s result. The valid result will be the greater one among the new result and 40.The new score will be valid even if it is worse than the original. A valid result already cannot be improved in the exam period.
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

Not provided.

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.