PORTALE DELLA DIDATTICA

### Statistical methods in data science

01TWWSM

A.A. 2021/22

2021/22

Statistical methods in data science

Basic concepts in Probability and Statistics will be presented to students coming from backgrounds different from Mathematics or Statistics.

Statistical methods in data science

Basic concepts in Probability and Statistics will be presented to students coming from backgrounds different from Mathematics or Statistics.

Statistical methods in data science

The student will learn the basics of Statistics (sampling distributions, estimates, test statistics, p-values, confidence intervals), solidly based on Probability theory. The aim is for the student to be able to model uncertainty in the real world, to draw conclusions from the accrual of evidence and to formulate them in probabilistic terms using appropriate software.

Statistical methods in data science

The student will learn the basics of Statistics (sampling distributions, estimates, test statistics, p-values, confidence intervals), solidly based on Probability theory. The aim is for the student to be able to model uncertainty in the real world, to draw conclusions from the accrual of evidence and to formulate them in probabilistic terms using appropriate software.

Statistical methods in data science

Extensive knowledge of calculus, basic knowledge of combinatorics and discrete probability.

Statistical methods in data science

Extensive knowledge of calculus, basic knowledge of combinatorics and discrete probability.

Statistical methods in data science

• Review of elementary probability theory and univariate random variables (8 hours) • Conditional, marginal and joint distributions; conditional expectations (6 hours) • Important multidimensional distributions (multinormal, multinomial, DAGs) (10 hours) • Convergence of probability laws and limit theorems (8 hours) • Sampling distributions and point estimation (12 hours) • Confidence intervals with applications to basic designs (11 hours) • Hypothesis testing, including goodness of fit (e.g. chi-square) (11hours) • Software for statistical analysis (14 hours)

Statistical methods in data science

• Review of elementary probability theory (4 hours) • Univariate random variables (8 hours) • Conditional, marginal and joint distributions; conditional expectations (6 hours) • Important multidimensional distributions (multinormal, multinomial) (6 hours) • Convergence of probability laws and limit theorems (8 hours) • Sampling distributions and point estimation (12 hours) • Confidence intervals with applications to basic designs (11 hours) • Hypothesis testing, including goodness of fit (e.g. chi-square) (11hours) • Software for statistical analysis (14 hours)

Statistical methods in data science

Statistical methods in data science

Statistical methods in data science

Traditional classes, exercise sessions and computer based sessions will be intertwined. The student will learn software by doing and by making the most out of extensive support given in the web.

Statistical methods in data science

Traditional classes, exercise sessions and computer based sessions will be intertwined. The student will learn software by doing and by making the most out of extensive support given in the web.

Statistical methods in data science

Reference textbooks Jay Devore. Probability and Statistics for Engineering and the Sciences. Any of various editions (Duxbury, Cengage, International). Casella, George, and Roger L. Berger. Statistical inference. Any of various editions Further readings Ross, S. Introduction to Probability and Statistics for Engineers and Scientists. Anyone of various recent editions (Italian translation by Apogeo). Ross, S. A first course in probability. for Engineers and Scientists. Anyone of various recent editions (Italian translation by Apogeo). Robert I. Kabacoff. R in action. Manning. 2nd edition 2015.

Statistical methods in data science

Reference textbook Jay Devore. Probability and Statistics for Engineering and the Sciences. Any of various editions (Duxbury, Cengage, International). Further readings Ross, S. Introduction to Probability and Statistics for Engineers and Scientists. Anyone of various recent editions (Italian translation by Apogeo). Ross, S. A first course in probability. for Engineers and Scientists. Anyone of various recent editions (Italian translation by Apogeo). Casella, George, and Roger L. Berger. Statistical inference. Any of various editions

Statistical methods in data science

Modalità di esame: Prova scritta (in aula); Prova orale facoltativa;

Statistical methods in data science

The exam consists of a written examination and an optional oral examination. Both the written and the optional oral part of the exam concerns all the subjects dealt during the course. The aim is to test the student's ability to apply the methods of analysis described during the course and to understand the software tools, without much emphasis on mathematical proofs. The duration of the written exam is two hours. The written exam is made by two parts: 8 quizzes (multiple choice questions) and 4 exercises. The maximum time for the 8 quizzes is 20 minutes. With respect to the 8 quizzes the score for each correct answer is 1 point, 0 points for each wrong or not given answer. The maximum score for the part made by the 8 quizzes is 8/30 points. In this part of the written exam textbooks, student notes or formularies are not allowed. The use of non-programmable electronic calculators is allowed. The maximum score for the part made by the 4 exercises is 24/30 points. In this part of the written exam textbooks, student notes or formularies provided by the teacher during the year are allowed. The use of non-programmable electronic calculators is allowed. The total score obtained in the written test is the sum of the one obtained in the quizzes (max 8/30) and that obtained in the part of exercises (max 24/30). If the total score is 31/30 or 32/30 then the exam score is "30 e lode". To pass the written exam at least 4/30 points in the quizzes and at least 18/30 as total score are required. The oral exam is possible under request for those students that in the written exam get a positive mark (i.e. at least 4/30 points in the quizzes and at least 18/30 as total score). Following the oral test, the mark obtained in the written part of the exam can be increased or decreased by no more than 6 points. During the oral exam the student will have to demonstrate knowledge of the concepts and of the results seen in class. The student will have to be able to provide examples and to solve simple exercises which may be asked by the teacher.

Statistical methods in data science

Exam: Written test; Optional oral exam;

Statistical methods in data science

The exam consists of a written examination and an optional oral examination. Both the written and the optional oral part of the exam concerns all the subjects dealt during the course. The aim is to test the student's ability to apply the methods of analysis described during the course and to understand the software tools, without much emphasis on mathematical proofs. The duration of the written exam is two hours. The written exam is made by two parts: 8 quizzes (multiple choice questions) and 4 exercises. The maximum time for the 8 quizzes is 20 minutes. With respect to the 8 quizzes the score for each correct answer is 1 point, 0 points for each wrong or not given answer. The maximum score for the part made by the 8 quizzes is 8/30 points. In this part of the written exam textbooks, student notes or formularies are not allowed. The use of non-programmable electronic calculators is allowed. The maximum score for the part made by the 4 exercises is 24/30 points. In this part of the written exam textbooks, student notes or formularies provided by the teacher during the year are allowed. The use of non-programmable electronic calculators is allowed. The total score obtained in the written test is the sum of the one obtained in the quizzes (max 8/30) and that obtained in the part of exercises (max 24/30). If the total score is 31/30 or 32/30 then the exam score is "30 e lode". To pass the written exam at least 4/30 points in the quizzes and at least 18/30 as total score are required. The oral exam is possible under request for those students that in the written exam get a positive mark (i.e. at least 4/30 points in the quizzes and at least 18/30 as total score). Following the oral test, the mark obtained in the written part of the exam can be increased or decreased by no more than 6 points. During the oral exam the student will have to demonstrate knowledge of the concepts and of the results seen in class. The student will have to be able to provide examples and to solve simple exercises which may be asked by the teacher.

Statistical methods in data science

Modalità di esame: Prova orale facoltativa; Prova scritta a risposta aperta o chiusa tramite PC con l'utilizzo della piattaforma di ateneo Exam integrata con strumenti di proctoring (Respondus);

Statistical methods in data science

The structure of the exam will not change. Please refer to the "Assessment and grading criteria up to 2019/20 a.y." section for its description. The written test will take place through the EXAM platform, integrated with proctoring tools (Respondus), which requires possession of a PC equipped with a camera. Students must follow the instructions provided by the University regarding the use of this platform. Students will give their answers to the multiple-choice questions through the EXAM platform. After 90 minutes (1h:45m) each student will have 10 minutes to upload the file containing the scans of the solutions on portale della didattica, sezione elaborati. Students are kindly asked to create a single PDF containing all the scans.

Statistical methods in data science

Exam: Optional oral exam; Computer-based written test with open-ended questions or multiple-choice questions using the Exam platform and proctoring tools (Respondus);

Statistical methods in data science

STRUCTURE OF THE EXAM The structure of the exam does not change with respect to that of the previous yearbook. The exam consists of a written examination and an optional oral examination. Both the written and the optional oral part of the exam concerns all the subjects dealt with during the course. The aim is to test the student's ability to apply the methods of analysis described during the course and to understand the software tools, without much emphasis on mathematical proofs. The duration of the written exam is two hours. The written exam is made by two parts: 8 quizzes (multiple choice questions) and 4 exercises. Examples of quizzes and exercises are available in the materiale section of the portal. The maximum time for the 8 quizzes is 20 minutes. With respect to the 8 quizzes, the score for each correct answer is 1 point, 0 points for each wrong, or not given answer. The maximum score for the part made by the 8 quizzes is 8/30 points. In this part of the written exam textbooks, student notes, or formularies are not allowed. The use of non-programmable electronic calculators is allowed. The maximum score for the part made by the 4 exercises is 24/30 points. In this part of the written exam textbooks, student notes, or formularies provided by the teacher during the year are allowed. The use of non-programmable electronic calculators is allowed. The total score obtained in the written test is the sum of the one obtained in the quizzes (max 8/30) and that obtained in the part of exercises (max 24/30). If the total score is 31/30 or 32/30 then the exam score is "30 e lode". To pass the written exam at least 4/30 points in the quizzes and at least 18/30 as total score is required. The oral exam is possible under request for those students that in the written exam get a positive mark (i.e. at least 4/30 points in the quizzes and at least 18/30 as total score). Following the oral test, the mark obtained in the written part of the exam can be increased or decreased by no more than 6 points. During the oral exam, the student will have to demonstrate knowledge of the concepts and of the results seen in class. The student will have to be able to provide examples and to solve simple exercises which may be asked by the teacher. ONLINE EXAM The written test will take place through the EXAM platform, integrated with proctoring tools (Respondus), which requires possession of a PC equipped with a camera. Students must follow the instructions provided by the University regarding the use of this platform. Students will give their answers to the multiple-choice questions (20 minutes) and to the exercises (90 minutes) through the EXAM platform. After 20+90 minutes each student will have 10 minutes to upload the file containing the scans of the solutions on portale della didattica, sezione elaborati. Students should create a single PDF containing all the scans. The optional oral exam will be carried on using a virtual classroom.

Statistical methods in data science

Modalità di esame: Prova scritta (in aula); Prova orale facoltativa; Prova scritta a risposta aperta o chiusa tramite PC con l'utilizzo della piattaforma di ateneo Exam integrata con strumenti di proctoring (Respondus);

Statistical methods in data science

For students that will take the exam onsite, the rules are those described in the "Assessment and grading criteria up to 2019/20 a.y." For students that will take the exam online, the rules are those described in the "Assessment and grading criteria for blended exam (online and onsite)"

Statistical methods in data science

Exam: Written test; Optional oral exam; Computer-based written test with open-ended questions or multiple-choice questions using the Exam platform and proctoring tools (Respondus);

Statistical methods in data science

Both for online and onsite exams the rules are those described in the section "Assessment and grading criteria for online exam". More specifically for onsite exams, the rules are described in sub-section "STRUCTURE OF THE EXAM" while those for online exams the rules are described in sub-sections "STRUCTURE OF THE EXAM" and "ONLINE EXAM".

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