Math in Decision Making


Course Syllabus   In-Class Quizzes (over HWK, every Wednesday)  
WebCt Quizzes (twice weekly)   Dr. Rayevskaya's Schedule



Announcements:      
Class is cancelled on Wed, Oct 11. In-class quiz will be on Friday.

  • Test 1 Review

    Make sure to review homework and quiz/webct quiz problems as well.

    2.1: set, element, empty set, cardinal number,word-description, listing method, set-builder notation, set equality. Examples 2,4,5.

    2.2: universal set, venn diagram, compliment, subset, proper subset, number of subsets. Examples 1,2,3,4,5.

    2.3: intersection, union, difference, set operations (except for cartesion product), venn diagrams (as an illustration). Examples 1,2,3,4,5,10a,11,13.

    2.4: cardinal number formula. Example 2.

    12.1: probability, event, sample space, theoretical probability formula, empirical probability formula, probability in genetics, odds, Example 3,5,7,9,10,11. Also problem 9 (4:7,5:6,2:9).

    12.2: properties of probability, compliments rule, general addition rule, special addition rule, Examples 1,2,3,5,6. Also problems 6 (5/6),10 (12/13,12:1), and 11 (2/13, 2:11).

    12.3: conditional probability,general multiplication rule of probability, independent events, special multiplication rule. Examples 2,4,5,7. Also problems 25 (12/52*11/51=11/221),27 (4/52*11/51=11/663).

    12.5: expected value. Examples 1,4,7. ALso problem 15 ($0.50).

    13.1: population, sample, data, quantitative, qualitative, frequency distribution, relative frequency, histogram, frequency polygon, grouped frequency distribution, class limits, stem-and-leaf display, bar graph, pie chart. Examples 1,2,3(Table 3),4.

    13.2: measure of central tendency, mean, median, mode, position of the median, symmetric and non-symmetric data sets, skewed to the right(left). Examples 1,3,4,5. Also problems 42 (6.1),43 (5),44 (4 and 6).

    13.3: range, standard deviation Examples 1, 2. Also problem 3 (17, 5.53).

    13.4: measures of position, z-score,percentile, quartile, box plot. Examples 1,2,4,5

    13.5: continuous random variable, normal distribution, normal curve, standard normal distribution, meaning of area under normal curve. Examples 2,3,5,6.



  • Test 2 Review

    Make sure to review homework and quiz/webct quiz problems as well.

    13.5: continuous random variable, normal distribution, normal curve, standard normal distribution, meaning of area under normal curve. Examples 2,3,5,6.

    13.6: skip

    14.1: interest, principal, simple interest (formula), future value(formula), present value(formula), compound interest(formula), effective annual yield(formula will be provided, but review anyway!), nominal rate.
    Examples 1,2,3,4(a),7,8, problem 51 p.800.

    14.2: closed-end credit, open-end credit, add-on interest (formula), itemized billing, finance charges, unpaid balance method, average daily balance method.
    Examples 1,2,3.

    14.3: APR, unearned interest, actuarial method (formula and Table 3 will be provided, but review anyway!), payoff amount (formula), rule of 78(formula will be provided, but review!), early penalty, finance charge per 100 dollars financed (formula provided).
    Example 1,2,3,4,5, problems 13, 21, 37.

    14.4 - mortgage, fixed rate, amortizing, regular monthly payment (formula will be provided, but review!), table 4, adjustable-rate mortgage, ARM, index, margin, closing cost.
    Example 1, 2, 3, 5, 7.

  • Final Exam Review

    Final exam will contain a take-home part which covers material covered in Test 1 and Test 2. Take-home will be given out on Friday Dec 8. Final exam is scheduled on Monday, December 11, at 1:00 p.m.

    8.1: rectangular coordinate system, plot, distance formula, midpoint formula, equation of a circle.
    Examples 1,2,5,6. Problems 33, 47.

    8.2: linear equation, intercepts, slope, vertical and horizontal lines, parallel and perpendicular lines.
    Examples 1,2,3,4,5,6,7.

    8.3: equation of lines, point-slope form,slope-intersect form, linear models.
    Examples 1,2,3,4,5,6. Problem 69.

    8.4: relations and functions, domain and range, graphs, vertical line test, function notation, cost and revenue models.
    Example 2,3,4,5,7. Problem 61.

    8.5 quadratic function, parabola, x-intercepts(roots), vertex.
    Examples 2,3,4,5,6. Problem 53.

    8.6 exponential function and its graph, compound interest formula, continuous compounding, logarithmic functions.
    Examples 1,2,3,5.

    Email Dr. Rayevskaya : rayevska@math.uni.edu