Instructor: Serban Raianu, office: NSM E-108, office phone: (310) 243-3139, cell phone: (657) 204-5612;
e-mail address: sraianu@csudh.edu, URL: http://math.csudh.edu/~sraianu;
office hours: Monday, Wednesday: 11:35 AM - 12:55 PM, 3:50 PM – 4:30 PM, or by appointment.
Course Description: A practical course in probability and statistics including such topics as normal distributions, confidence intervals, t tests, linear regression and correlation.
Text: The Basic Practice of Statistics, by David S. Moore. W.H. Freeman and Company, Sixth Edition.
Objectives: After completing MAT 131 the student will be able to demonstrate understanding of the relationship between a question that is asked in the natural, economic, and social sciences and the nature of the numerical data that are needed in order to provide an answer to the question, carry out the required algebraic manipulations, with appropriate use of a calculator, to analyze and understand the implications contained in a set of numerical data, draw a valid inference from a collection of numerical data.
Prerequisites: Quantitative Reasoning Placement Level 2 or completion of any of MAT 105, MAT 151, MAT 153, or MAT 191.
Grades: Grades will be based on four full period written examinations (60% total), a comprehensive final examination (25%), and quizzes, homework and (possibly) other assignments (15%) for the remainder.
The exact grading system for your section is the following:
No makeup examinations will be given. The exams are taken in class and graded on Gradescope. Each of the four exams will be graded on a 0-60 scale, then the lowest score will be dropped and the average of the remaining scores is denoted by E.
Homework will be submitted in Gradescope at https://www.gradescope.com/. You will have to go to the website and log in. Before you log in for the first time, check with me to make sure that you have been added to the roster in Gradescope, then click on “Forgot password” and enter your toromail CSUDH email address. Then open your email and follow the reset password link to set your password. Homework assignments will be due after we finish covering a chapter, at the end of the day on January 25, February 1, 8, 24, March 3, 8, 22, April 5, 7, 19, 26, 28, and each homework is worth 10 points. The submission will consist of a summary of what was learned in the chapter and versions of problems done in class with the numbers changed. The average of all homework scores is denoted by H. Homework will be submitted as a pdf of your paperwork on Gradescope. There is no need to match the pages with the problems when submitting the homework, just click on “assign pages sequentially”, see https://www.youtube.com/watch?v=u-pK4GzpId0
You can practice submitting your work on Gradescope using the assignment called Submission practice, which will remain open throughout the semester. No late homework will be accepted.
15 minutes quizzes will be given on January 26, February 2, 9, 25, March 4, 9, 23, April 6, 8, 20, 27, 29 and will be graded on a scale from 1 to 5. The average of the quiz scores is denoted by Q. Each quiz will consist of one problem, similar but not necessarily identical to one of the homework problems assigned for that week. The quiz will be taken in class and graded on Gradescope. No makeup quizzes will be offered.
The final exam, will consist of problems similar to problems assigned as homework throughout the semester, and will be graded out of a maximum possible 25 points. The score on the final is denoted by F. The final exam will be taken in class and graded on Gradescope.
To determine your final grade, compute E+H+Q+F. The maximum is 100, and the grade will be given by the rule:
A: 93-100; A-: 90-92; B+: 87-89; B: 83-86; B-: 80-82; C+: 77-79; C: 73-76; C-: 70-72; D+: 67-69; D: 63-66; D-: 60-62F: Less than 60.
You will be able to follow your progress in Gradescope throughout the semester by computing your current score following the system described above.
Extra Credit: extra credit opportunities will be announced in class.
Accommodations for Students with Disabilities: California State University, Dominguez Hills adheres to all applicable federal, state, and local laws, regulations, and guidelines with respect to providing reasonable accommodations for students with temporary and permanent disabilities. If you have a disability that may adversely affect your work in this class, I encourage you to register with Student disAbility Resource Center (SdRC) and to talk with me about how I can best help you. All disclosures of disabilities will be kept strictly confidential. Please note: no accommodation may be made until you register with the SdRC in WH D-180. For information call (310) 243-3660 or to use telecommunications Device for the Deaf, call (310) 243-2028.
Academic Integrity: The mathematics department does not tolerate cheating. Students who have questions or concerns about academic integrity should ask their professors or the counselors in the Student Development Office, or refer to the University Catalog for more information. (Look in the index under "academic integrity".)
W 1/21: Chapter 1 (Picturing Distributions with Graphs)
M 1/26, W 1/28: Chapter 2 (Describing Distributions with Numbers)
M 2/2, W 2/4: Chapter 3 (The Normal Distributions)
M 2/9: Review
W 2/11: Exam 1
M 2/16: Presidents’ Day Holiday
W 2/18, M 2/23: Chapter 4 (Scatterplots and Correlation)
W 2/25, M 3/2:. Chapter 5 (Regression)
W 3/4: . Chapter 8 (Producing Data: Sampling)
M 3/9: Review
W3/11: Exam 2
M 3/16, W 3/18: Chapter 9 (Producing Data: Experiments)
M 3/23, W 3/25:.Chapter 10 (Introducing Probability)
M 3/30, W 4/1: Spring Recess
M 4/6: Chapter 11 (Sampling Distributions)
W 4/8: Review
M 4/13: Exam 3
W 4/15: Chapter 14 (Confidence Intervals: The Basics)
M 4/20, W 4/22:. Chapter 15 (Tests of Significance: The Basics)
M 4/27: Chapter 18 (Inference about Variables)
W 4/29: Review
M 5/4: Exam 4
W 5/6: Final review
January 19 Monday Last Day for students on Waitlist to be added to classes; all waitlists will be canceled at midnight
January 20 Tuesday Classes Begin
January 20 – February 12 Tuesday-Thursday Late Registration and Add/Drop via MyCSUDH - fees due at the time of registration
February 1 Sunday Summer 2026 Graduation Application Deadline – without late fee
February 5 Thursday Instructor Drop Deadline
February 5 Thursday Credit/No Credit and Audit Grading Deadline
February 13 Friday Drop without Record of Enrollment Deadline via Change of Program Form
February 13 Friday Student Census
February 16 – April 17 Monday-Friday Serious and Compelling Reason Required to Withdraw
February 16 Monday Presidents’ Day Holiday - NO CLASSES, CAMPUS OPEN
February 17 – May 16 Tuesday-Saturday May Intersession 2026 Registration – fees due at time of registration
March 16 – July 5 Monday-Sunday Summer 2026 Registration – fees due at time of registration
March 26 Thursday Last Day for Pro-rata Refund of Non-Resident Tuition and Tuition Fees
March 26 Thursday Last Day to Drop from FT to PT Status
March 29 – April 4 Sunday-Saturday Spring Recess
March 31 Tuesday César Chávez Day Holiday - NO CLASSES, CAMPUS CLOSED
April 15 Wednesday Summer 2026 Graduation Application - Late Deadline - with late fee
April 17 Friday First Day to File for Spring 2027 Graduation
April 20 – May 8 Monday-Friday Serious Accident/Illness Required to Withdraw
April 20 Monday Fall 2026 Registration begins via MyCSUDH
May 8 Friday Last Day of Scheduled Classes
May 9 – 15 Saturday-Friday Final Examinations
May 9 Saturday Grades Submission Begins
May 15 – 16 Friday-Saturday Commencement (for more information, see ceremony schedule)
May 18 Monday Evaluation Day
May 20, 3 pm Wednesday Final Grades Due – College of Continuing and Professional Education grades always due 72 hours after the course end date
May 20 Wednesday Semester/Academic Year Ends