Lecture 6. Lec. 6 (pdf files). Bayes rule (in Chapter 2).
Recommended exercises from text book: 2.80, 2.81, 2.86, 2.98.
9/05/01 (Homework 1 due today!!!)
Homework 2 assigned today.
ST 421 has moved to:
Probability exercises (to review material in chapter 2)
Recommended exercises:
2.98, 2.15, 2.123, 2.124, 2.125, 2.126, 2.127, 2.87, 2.91, 2.93.
September 7.
Lecture 7. Lec. 7 (pdf files). Random variables ( Chapter 3).
Recommended exercises from text book: 2.117, 2.118, 2.210, 2.130, 3.3, 3.4, 3.5
September 10. Homework 2 due today Homework 3 assigned
today.
September 12. CLASSES CANCELLED AT NCSU from noon till 2:30pm.
Lecture 8. Lec. 8 (pdf files). Expected value ( Chapter 3).
Recommended exercises from text book: 3.10, 3.13, 3.14, 3.16, 3.17, 3.21.
September 14
Lecture 9. Lec. 9 (pdf files). Binomial and exercises about expected value (Chapter 3).
Recommended exercises from text book: 3.27, 3.29, 3.36, 3.45.
HW 3 DUE TODAY, HW 4 ASSIGNED TODAY.
September 17, 2001.
Lecture 10. Lec. 10 (pdf files). Geometric, Negative Bionomial, Hypergeometric.
Recommended exercises from text book: 3.51, 3.52, 3.55, 3.74, 3.79, 3.84, 3.91, 3.92.
September 19
In-class review of material for Quiz 1.
September 21
QUIZ 1
September 4
Bring a calculator, and 1 cheat sheet. Solutions to the quiz are on reserve at the library
QUIZ Grades: Mode of the quiz grades is 100, and median 85.5.
Lecture 12. Lec. 12 (pdf files). Solutions to Quiz, Examples of all distributions,
POISON, Moments of a distribution.
Exercises from the book: (exercises to review all distributions).
HW 4 due today.
September 28
Lecture 13. Lec. 13 (pdf files). Continuous distributions (chapter 4).
Exercises from the book: 4.6, 4.11.
HW 5 due today
October 3
Lecture 14. Lec. 14 (pdf files). Expected value of a continuous distribution. The Uniform
distribution (chapter 4).
Exercises from the book: 4.15, 4.19, 4.21, 4.28, 4.29, 4.37.
October 12
Lecture 15. Lec. 15 (pdf files). The normal distribution, the gamma (chi-square and exponential) distribution. Exercises: 4.47, 4.49, 4.57, 4.69, 4.70, 4.71, 4.73, 4.81.
HW 6 Due today. HW 7 assigned today.
October 8
Lecture 16. Lec. 16 (pdf files) The Beta distribution (review of all continuous variables).
Exercises: 4.91, 4.97, 4.99.
October 10
October 12 FALL BREAK
Lecture 17. Lec. 17 (pdf files) Moments of a continuos variable, Tchbysheff"stheorem.
Exercises: 4.107, 4.108, 4.109, 4.115.
October 17
HW 7 due today, HW 8 assigned today.
Review of Chapter 4 and Tchbysheff"stheorem.
October 19
Exercises:5.17, 5.21, 5.23
Homework 8 due today, HW9 assigned today
October 24
Review of material for quiz 2.
October 26
Quiz 2 (click here)
Solutions to the quiz will be on reserve at the library just right
after the exam.
Bring a calculator and a cheat sheet, the distribution tables
(from the book) will be provided
Quiz 2 will be graded by Nov. 7
October 29.
Lecture 20. Lec. 20 (pdf files)Independency, expected value .
Dr. Dennis Boos from the STAT department at NCSU will give
this lecture.
HW 9 due today, Hw 10 assigned today
October 31
Lecture 20. Lec. 20 (pdf files)We will continue with independency and expected values
(same notes that for October 31). .
Exercises: 5.39, 5.43, 5.45, 5.61.
November 2
Lecture 21. Lec. 21 (pdf files) Special theorems about expected values and the covariance
of two r.v.. .
Exercises: 5.65, 5.69, 5.75, 5.77, 5.81, 5.83.
November 5
Lecture 22. Lec. 22 (pdf files) covariance
of two r.v.'s and moments of linear combinations of r.v.'s
Exercises: 5.87, 5.91
HW 10 due today, HW 11 assigned today.
HW 11 is due November 16, I will not accept LATE Hw's 11, because
I want to put on reserve for your use the solutions to Hw 11 on Nov. 16
(the day is due).
November 7 Quiz 2 mode: A+ (100), percent of As: 24%,
standard deviation: 20, histogram of grades
Lecture 24. Lec. 24 (pdf files) The bivariate normal (and also some more exercises with
multinomials and linear combinations of r.v.'s)
Exercises: 5.91, 5.99, 5.110, 5.111
November 12
Review for quiz 3
Chapter 5, moment-generating functions, and Tchbysheff"stheorem.
HW 11 due today, and Hw 12 (HW 12 has extra-credit points!) assigned today. Solutions to HW 11 are on reserve
at the library Nov. 16 at 2:20pm.
November 16
We will start the quiz 10 minutes earlier at 1:20pm (so you
will get some extra time). This quiz is only 4 questions, but
there are a lot of calculations with integrals.
Solutions for the quiz on reserve at the library Nov. 19 at 2:20pm.
Deadline to drop quiz 3: November 30 (requests after this date
will not be accepted). You can only drop 2 out of 3 quizzes.
Quiz 3 will be graded by Nov. 28.
November 19
Thanksgiving Holidays
Lecture 26. Lec. 26 (pdf files)Methods to find the distribution of a function of r.v.'s (Chapter 6).
Exercises: 6.1, 6.3, 6.5 and 6.7
November 26
Grades Quiz 3: 21% A (10% A+). Standard deviation 20, median 72.
Exercises of method 1 to find the distribution of a function of r.v.'s.
Exercises: 6.3, 6.5 and 6.7, 6.11 and 6.13
November 28
HW12 due today, HW 13 assigned today due December 7 (with extra-credit questions)
Lecture 27. Lec. 27 (pdf files)Method of transformations (Chapter 6).
Exercises: 6.19, 6.21 and 6.27.
November 30.
Today: Deadline to drop quiz 3: November 30 (requests after this date
will not be accepted). You can only drop 2 out of 3 quizzes.
Lecture 28. Lec. 27 (pdf files)Method of the moment generating functions (Chapter 6).
Exercises: 6.35, 6.39 and 6.43.
December 3
Exercises of Chapter 6
December 5
December 7 last day of classes. Review for the final.
HW 13 due today, late homeworks will not be accepted
Solutions for all hws on reserve at the library
Final
November 14, from 1pm to 3pm in Mann Hall 216.
Bring a calculator and 2 cheat sheets.