Math 124, Section E1, Fall 2006

Finite Mathematics

Course news Homework assignments Syllabus Answer of Quiz5, Answer of Exam3

Review questions for math124 (updated version; #7,#19 crossed out, numbers in #25 changed, review exam 1-3 for more problems);

Answer of Review questions (Inform me if you beleive I get a wrong answer);

Score Report

Lectures: MWF 1:00-1:50pm in 441 ALTGELD
Instructor: Tao Mei, mei@math.uiuc.edu
Course homepage: www.math.uiuc.edu/~mei/math124.html
Office & Telephone: ALTGELD Hall 221, 217-244-2478
Office Hours: W 2:00 - 4:00 PM or by appointment
Textbook (required): Brown and Sherbert, Methods of Finite Mathematics, Wiley, 1999.

Course Description:

Introduction to the basic ideas of logic, set theory, probability, vectors, and matrices. Applied problems are selected from the social sciences and business. Prerequisite: Math 012 or equivalent.

Course News
Beginning this Thursday, Oct 12th, we offer free tutoring to
all Math 124 students:
Where: 173 Altgeld Hall
When: 3:30 - 5:30 pm every Thursday (except except exam weeks*)

         * Exam Week Tutoring will be as follows:
                 Tuesday, October 17th, 3:30 - 5:30 (no tutoring
Thursday, Oct. 19th)
                 Tuesday, November 14th, 3:30 - 5:30 (no tutoring
Thursday, Nov. 16th)

Exam dates: There will be three hour-long exams
from 7 - 8 pm on Wednesdays: Sept 20, Oct 18, and Nov 15.Final Exam- 1:30-4:30 PM, Wednesday, December 13, in our usual classroom 441 Altgeld (Note not the classroom where we took midterms) 　

The pre-exam office hours will be the following:

Homework Assignments

Hw#14 Section 3.1: #13,22,24, 26,27,31,32,33,35,47,49,53,54

Hw#13 Section 2.2:#3, 9, 11,12, 15,16;Section 2.3:#7,11,13,15,18,23,29,30,31; section 2.4, #1,5, 7

Hw#12, Section 2.1:#3, 8,29,30,31, more on Section 2.1, #15, 18, 21,23; Review exercise of chapter 1, #23(on page 62);

Answer : #18:(-96,19,-8, 3), #30:(-6,2,1);

Hw#11, Section 1.4:#3,9, 21, 25,27,29,Section 1.5:#5,15,19,25, Section 1.6, #7,11,15.

Hw#10, Section 1.3:#13,,19,27,29

Homework #9, Section 7.2, #3, 7, 11, 13, 17, 19, 23; Section 1.2, #9, 11, 15, 19, 41

Homewrok #8, Section 7.1: #1, 4, 5, 9, 12, 15, 21, 25, 27,

Answer of #12 of section 7.1:Pr(X=1)=1/6, Pr(X=2)=1/3, Pr(X=3)=1/6, Pr(X=4)=1/6, Pr(X=6)=1/6

Homewrok #7, Section 6.5: #5, 6,7,9,13,16,19,26,31

Answer of even numbers: #6 they are independent;#16,Pr(F)=0.9;

Homewrok #6, Section 6.3: #3,5,7,9,17,19,20,28,31,32; section 6.4:#1,5,7,9,11
Answer of even numbers of Hw6: #28: 75%*0.25%+15%*0.3%+10%*0.2%=0.2525%,#32: 1-0.8*0.9*0.95=0.316
Assignment #1 Excercise of section 5.1 of the textbook: #2,4,10,12,14,20,26,29,32,34,38,42
Suggested answer of problems of even numbers from homework#1(Let me know if you think my answer is wrong.)
#2:c,d,e are sets;#4:(a){-30,-25,-20,-15,-10,-5},(b){13,26,39};#10:a,b,c are true, d,e are false; #12 A'={3,10}, B'={4,8,10}, AUB={3,4,6,8,12}, A_B={6,12}, A_B'={4,8};#14, A'={s,1,2}, B'={x,y}, AUB={x,y,s,t,1,2}, A_B={t},A_B'={x,y}; #20,#26,n(A)=19; #32, (a)300,(b)235,(c)210; #34, n(g)=6,n(e)=3,n(d)=7,n(f)=9,n(a)=10,n(b)=4,n(c)=13,n(h)=23; #38, (a)24(b)19(c)59;#42,n(B)=55;
Assignment #2 Excercise of section 5.2 of the textbook: #6,7,18,19,22,25,29,32
Suggested answer of problems of even numbers from homework#2(Let me know if you think my answer is wrong.) #6:93,#18:6^7=279936,#22:{3,6,9},{3,9,6},{6,3,9},{6,9,3},{9,3,6},{9,6,3}; #32:P(8,4)*P(7,5)=(8*7*6*5)*(7*6*5*4*3)=42336;
Assignment #3 Section 5.3: #9,13,17,21,27; Review of chapter 5:#26,#30;
Homework#4, Section 6.1: #3,9,13,17,21,29,30,33,34,39,40
Answer of even numbers of hw4: #30: 4/9, #40: 13*48/C(52,5);
Homewrok #5, Section 6.2: #5,7,9,23,27,33,35

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