800 023 02/03 Mathematics in Decision Making [Campbell] Homework Assignments

No Homework will be collected, but problems you should look at are listed below.

Answers/solutions to the even number problems which I have listed are available [click here]

This page may be updated as the semester progresses.

Text: Miller, C. D., et al. Mathematical Ideas, tenth edition.

first lecture - p.730: 1ab (N.B.: you should construct a bar chart, not a histogram), 23, 24, 37 (in this context probabilities are relative frequencies);
Also: Which of the following can be displayed with a pie chart? populations of the states, years since admission of the states, per capita incomes of the states
second lecture - p.730: 5ab, 9;
Also: Which of the following are quantitative (versus qualitative) charaters? height, eye color, hometown, type of pizza, weight, age
third lecture - p.744 - 1, 11 (also find the maximum, minimum, and midrange), 13, 19, 20, 21, 22, 23, 24, 31, 34, 47 (also midrange), 49, 51;
Also: If you drive 10 miles at 30 mph and 10 miles at 50 mph, what is your average speed?
If you put $100 in the bank for two years and it earns 3% interest the first year and 5% interest the second year, what is the average interest rate?
fourth lecture - p.753 - 3, 5, 29, 30, 31, 32, 46, 47; p.770 - 9, 13 (I am only interested in the empirical rule from this section)
fifth lecture - p.760 - 1, 5, 6, 18, 19, 29, 32;
Also: If the mean weight in a class is 148 pounds, and the standard deviation is 34 pounds, what is the z-score of a 175 pound student?
sixth lecture - p.753 - 38, 39, 42; p.760 - 22, 24, 25; p.776 - 5, 6 (I included 5 and 6 so you would think about whether height or area reflects relative size), 12, 15

[First Test]

ninth lecture - p.635 - 1, 3, 11, 21, 23, 49, 61, 62, 65; p.644 - 25, 31, 32, 33, 35, 36, 42, 43, 55, 56
tenth lecture - p.644 - 5, 9, 13, 15, 17; p.655 - 1, 3, 19, 21, 24, 25, 27, 29, 34, 35, 39, 41, 43, 47, 49, 60
eleventh lecture - p.662 - 5, 10, 15, 23, 25, 27, 44, 47
twelfth lecture - p.681 - 8, 11, 12, 53, 54, 56, 63; p.689 - 4, 7, 9, 11, 13, 15, 17, 23, 25;
Also: If P(A) = .4 and P(B) = .6, and A and B are mutually exclusive (disjoint), P(A ∩ B) = ? P(A ∪ B) = ? (If symbols are missing, they are union and intersection signs; the question marks after the equal signs are question marks)
thirteenth lecture - p.698 - 5, 6, 9, 11, 13, 17, 19, 23, 25, 29, 30, 36, 52;
Also: If P(A) = .4 and P(B) = .6, and A and B are independent, P(A ∩ B) = ? P(A ∪ B) = ? (If symbols are missing, they are union and intersection signs; the question marks after the equal signs are question marks)
fourteenth lecture - p.681 - 46, 48;
Also: What is the probability that two face cards which are drawn from a standard 52 card deck are both black if they are drawn without replacement? If they are drawn with replacement?

[Second Test]

Music/dance problems? [Not covered this semester?]

[Third Test]

twenty-fifth lecture - p.798 - 1, 3, 5, 7a, 9a, 29
twenty-sixth lecture - p. 798 - 7b, 9b, 21, 23, 25abcd, 33, 35, 41, 43
twenty-seventh lecture - p. 798 - 25e, 55, 57, 59
twenty-eighth lecture - p.805 - 1, 3; p.820 - 1, 3, 17 (They want you to use table 3 to find the APR); p.829 - 1, 5, 9, 21, 22, 23, 24, 31, 33

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