Math 425

Math/Stat 425: Introduction to Probability (Fall 2008)

Text (required):

Sheldon Ross,
A First Course in Probability, 7-th edition,
Prentice-Hall 2006.

[However, if necessary, you can use the 6-th edition (2002) as a textbook.The text differences are minor,
and the homework problem sets below list problem numbers for both editions.]

[Text differences: In the first 8 chapters all section numbers of the two editions are the same,
except the 6-th ed. is missing section 7.3, so that
section 7.x in 7-th edition corresponds to section 7.(x-1) in 6-th edition, for x between 4 and 8.]

  • Where can I buy a copy of this textbook (7-th Edition) ?
  • Where can I buy a copy of this textbook (6-th Edition) ?
  • Course Meets:

    Section 5: MWF 1:00pm-- 2:00pm in 1372 East Hall;

    Instructor: Jeffrey Lagarias, 3086 East Hall, 763-1186, lagarias@umich.edu

    Office hours: (current-subject to change) Wed 2:10-3:00pm, Thurs 10:10-11:00am, Fri. 2:10-3:00pm

    Grader: Siew Gee
    email: siewgee@umich.edu

    Course homepage: http://www.math.lsa.umich.edu/~lagarias/m425fa08.html

    Syllabus:[May be revised]

  • Course Schedule/Homework Dates
  • Prerequisite: Math 215 or 285 (multivariable calculus)

    From departmental course description:

    This course is an introduction to the theory of probability and to a number of applications.

    Topics include the basic results and methods of both discrete and continuous probability theory:
    conditional probability, independent events, random variables, jointly distributed random variables,
    expectations, variances, covariances.

    The material corresponds to most of Chapters 1--7 and may include part of Chapter 8 of Ross.

    Grading:

    There will be graded homeworks (20%), two 1-hour midterm exams (25% each)
    and a comprehensive final exam (30%).

    The course will NOT be graded on a curve,i.e. there are not a set number of each grade to be given out.
    Every student with total score of 90%(resp. 80%, 70%, 60%)
    will be guaranteed the final grade of A ,
    (resp. B or higher, C or higher, D or higher).

    Homework: There will be approximately 10 problem sets.
    No late homework will be accepted.

    Your lowest homework score will be dropped.

    In each homework set, 5 problems will be graded.
    All answers should be justified by a sound argument. Answers lacking justification will receive no credit.

    Collaboration on homework is fine, but each person must write up his/her own solutions.

    Exams:

    These are closed book, closed notebook.

    You will be allowed to bring a 3-by-5 index card to the first midterm, 2 such cards to the second midterm,
    and 3 such cards to the final exam.

    One problem from each exam will be taken directly from the homework (possibly with altered numerical values).

    Downloadable examples of Math 425 exams can be found on Dan Burn's webpage.

    The midterm exams are held in class.
    No Makeup Exams will be given.

    Exam #1 covers Chapters 1--3. (In class, Friday Oct. 3)-->

    Quizzes:

    There will also be some 10 minute in-class quizzes.
    These quizzes DO NOT COUNT towards the grade.
    However some will be scored and do provide feedback.

    Solutions to Quiz #1 (09/10/08)   Problem #1   Problem #2

    Solutions to Quiz #2 (09/17/08)   Problem #1   Problem #2

    Solutions to Quiz #3 (09/24/08)   Problem #1   Problem #2

    Solutions to Quiz #4 (10/13/08)   Problem #1   Problem #2

    Solutions to Quiz #5 (10/25/08)   Problem #1   Problem #2

    Solutions to Quiz #6 (11/03/08)   Problem #1   Problem #2

    Solutions to Quiz #7 (11/19/08)   Problem #1   Problem #2

    Solutions to Quiz #8 (12/01/08)   Problem #1   Problem #2