https://dananne.org/dw/ 2026-05-06T05:09:51+00:00 https://dananne.org/dw/ https://dananne.org/dw/lib/tpl/codowik/images/favicon.ico text/html 2017-01-10T11:18:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-1&rev=1484075918&do=diff Mathematics 120 - Spring 2017 Homework Read Chapters 1 and 2 of the text. text/html 2017-01-12T10:13:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-2&rev=1484244781&do=diff Mathematics 120 - Spring 2017 Homework Chapter 2 Exercise Set A: 1, 2, 5, 7, 8, 9, 10, 13, 14, 15 text/html 2017-01-12T10:12:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-3&rev=1484244753&do=diff Mathematics 120 - Spring 2017 Homework Section 3.1 Exercise Set A: 1, 2, 3, 4, 5, 6, 7, 8 Section 3.2 Exercise Set B: 1, 2, 3, 4 Section 3.3 Exercise Set C: 1, 4 text/html 2017-01-17T10:18:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-4&rev=1484677123&do=diff Mathematics 120 - Spring 2017 Homework Section 3.4 Exercise Set D: 1, 2 Section 3.5 Exercise Set E: 1, 2 Section 3.6 Exercise Set F: 1, 2, 3 text/html 2017-01-23T08:26:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-5&rev=1485188791&do=diff Mathematics 120 - Spring 2017 Homework Section 4.2 Exercise Set A: 2, 3, 4, 5, 8, 9 Section 4.3 Exercise Set B: 1, 2, 3, 4, 5 Section 4.4 Exercise Set C: 1, 3, 6 Section 4.5 Exercise Set D: 1, 7, 8 Section 4.6 Exercise Set E: 1, 4, 5, 6, 7, 8, 9, 10, 11$\bar{x} = 113.2$ text/html 2017-01-22T13:18:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-6&rev=1485119895&do=diff Mathematics 120 - Spring 2017 Homework Section 5.1 Exercise Set A: 1, 2 Section 5.2 Exercise Set B: 1, 2, 3 4, 5 Section 5.3 Exercise Set C: 1, 2, 3 text/html 2017-01-24T08:01:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-7&rev=1485273712&do=diff Mathematics 120 - Spring 2017 Homework Section 5.4 Exercise Set D: 1, 2, 3, 4, 5 Section 5.5 Exercise Set E: 1, 2, 3 Section 5.6 Exercise Set F: 1 Section 6.5 Review Exercises: 1, 2, 3, 4, 5 Also: Suppose the following 20 birth weights (in ounces) were recorded at a maternity ward: 131, 120, 112, 88, 114, 128, 133, 104, 108, 94, 133, 124, 84, 132, 107, 144, 93, 114, 116, 120. Find the median, the the first and third sample quartiles, and the interquartile range. text/html 2017-02-02T07:57:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-9&rev=1486051067&do=diff Mathematics 120 - Spring 2017 Homework Section 13.1 Exercise Set A: 1, 2, 3, 4, 5 Section 13.2 Exercise Set B: 1, 2, 3, 4 Section 13.3 Exercise Set C: 1, 2, 3, 4, 5, 7 Section 13.4 Exercise Set D: 1, 2, 3, 5, 6, 7 text/html 2017-02-05T11:19:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-10&rev=1486322375&do=diff Mathematics 120 - Spring 2017 Homework Section 14.1 Exercise Set A: 1, 2, 3, 4 Section 14.2 Exercise Set B: 1, 2, 3, 4, 5, 6 Section 14.3 Exercise Set C: 1, 2, 3, 4, 5 Section 14.4 Exercise Set D: 1, 2, 3, 4, 5, 6, 7 Also: How many times would you need to roll a fair die in order to have the probability of rolling at least one six be greater than 0.99? text/html 2017-02-07T06:08:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-11&rev=1486476523&do=diff Mathematics 120 - Spring 2017 Homework Section 15.1 Exercise Set A: 1, 2, 3, 4, 5, 6 Also: Suppose a box contains 10 red marbles and 15 blue marbles. If 10 marbles are selected from the box, with replacement, find the probability of each of the following: text/html 2017-02-09T08:18:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-12&rev=1486657087&do=diff Mathematics 120 - Spring 2017 Homework Section 16.1 Exercise Set A: 1, 2, 3, 4, 6, 7, 8 Section 16.3 Exercise Set B: 1, 2, 3, 4, 5, 6 Section 16.4 Exercise Set C: 1, 2, 3 text/html 2017-02-12T07:33:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-13&rev=1486913587&do=diff Mathematics 120 - Spring 2017 Homework Section 17.1 Exercise Set A: 1, 2, 3, 4, 5 Section 17.2 Exercise Set B: 1, 2, 3, 4, 5, 6, 7 Also: A gambler bets on a split in roulette (see Problem 2 on page 284). The gambler wins 17 dollars if either number in the split comes up, and loses one dollar otherwise.$\mu = -\frac{1}{19}$$100 \times \mu = -\frac{100}{19} = -5.263$$\sigma = 4.019$$\sqrt{100} \times \sigma = 40.19$ text/html 2017-03-17T10:45:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-14&rev=1489772728&do=diff Mathematics 120 - Spring 2017 Homework Section 17.3 Exercise Set C: 1, 2, 3, 5, 6, 7 Section 17.5 Exercise Set E: 1, 2, 3, 6, 7, 9 Section 18.4 Exercise Set B: 3, 4, 5 Section 18.5 Exercise Set C: 2, 5, 6 And: Suppose a die has two faces with one dot, and the remaining faces are labeled 3, 4, 5, and 6. If the die is rolled 100 times, approximate the probability that the sum is (a) exactly 350, (b) between 300 and 350, inclusive, and ( text/html 2017-03-17T10:46:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-15&rev=1489772776&do=diff Mathematics 120 - Spring 2017 Homework Section 19.8 Exercise Set A: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 text/html 2017-03-16T12:20:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-16&rev=1489692024&do=diff Mathematics 120 - Spring 2017 Homework Section 20.2 Exercise Set A: 1, 2, 4, 8 Section 20.3 Exercise Set B: 1, 2, 3 Section 20.4 Exercise Set C: 1, 2, 3, 4, 5 text/html 2017-03-16T12:20:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-17&rev=1489692008&do=diff Mathematics 120 - Spring 2017 Homework Section 21.1 Exercise Set A: 1, 3, 4, 5, 6 Section 21.2 Exercise Set B: 1, 2, 4 Section 21.3 Exercise Set C: 1, 2, 3, 4, 5, 6, 7, 8 Section 21.4 Exercise Set D: 1, 2 Also: Suppose that in a simple random sample of 1500 adults in the United States, 800 say they favor retaining the Affordable Care Act. Find confidence intervals for the true proportion of adults who favor retaining the Affordable Care Act at a (a) 95% confidence level, (b) 80% conf… text/html 2017-03-16T12:19:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-18&rev=1489691987&do=diff Mathematics 120 - Spring 2017 Homework Section 23.1 Exercise Set A: 1, 2, 3, 4, 5, 9 Section 23.2 Exercise Set B: 1, 4, 5, 6, 7, 8 Section 23.3 Exercise Set C: 1, 2, 5, 6 Section 23.4 Exercise Set D: 1, 2, 4, 5, 6, 7 Also: Suppose the the mean height of a random sample of 200 male adults was found to be $\bar{x} = 69.4$$\mathrm{SD} = 4.56$ text/html 2017-03-16T12:18:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-19&rev=1489691917&do=diff Mathematics 120 - Spring 2017 Homework Section 26.1 Exercise Set A: 1, 2, 3, 4, 5 Section 26.2 Exercise Set B: 1, 2, 3, 4, 5 Section 26.3 Exercise Set C: 1, 3, 4, 5, 6, 7, 8 Section 26.4 Exercise Set D: 1, 2, 3, 4, 5 Section 26.5 Exercise Set E: 1, 2, 3, 4, 5, 6, 7, 8, 10, 11 text/html 2017-03-26T14:20:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-20&rev=1490563255&do=diff Mathematics 120 - Spring 2017 Homework Section 26.6 Exercise Set F: 1, 2, 3, 4, 5, 6, 7 Also * When working properly, a cereal packaging machine is supposed to place 16 ounces of cereal in each box. A random sample of 10 boxes had a sample average of $\bar{x} = 15.57$$\mathrm{SD}^+ = 0.5736$$\mu$$H_0 : \mu = 16$$H_1 : \mu < 16$$H_1 : \mu \ne 16$$\mu$$\bar{x} = 1.57$$\mathrm{SD^+} = 1.23$$\mu$$p$$H_0 : p = \frac{1}{2}$$p$$p$$H_0 : \mu = 0$$H_1 : \mu > 0$$z = 10.53$$p = \frac{1}{4}$$H_0 : p… text/html 2017-03-16T11:08:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-21&rev=1489687703&do=diff Mathematics 120 - Spring 2017 Homework Section 27.1 Exercise Set A: 2, 3, 6 Section 27.2 Exercise Set B: 2, 3, 4, 6, 7, 8 text/html 2017-03-23T10:34:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-22&rev=1490290497&do=diff Mathematics 120 - Spring 2017 Homework Section 27.3 Exercise Set C: 2, 3, 4 Section 27.4 Exercise Set D: 2, 3, 4, 6, 7 text/html 2017-03-26T14:19:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-23&rev=1490563190&do=diff Mathematics 120 - Spring 2017 Homework Section 28.2 Exercise Set A: 1, 2, 3, 4, 5, 6, 7, 9 Section 28.3 Exercise Set B: 3 And: The following table gives the number of deaths due to accidental falls in the United States for 1970: Month Number of Deaths $\chi^2 = 75.4273$ text/html 2017-03-28T07:46:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-24&rev=1490712372&do=diff Mathematics 120 - Spring 2017 Homework Section 28.4 Exercise Set C: 2, 3, 5, 6, 7 Review Exercises (page 541): 3 Also: In a study of the relationship between laterality of hand and laterality of eye, 413 subjects were classified according to these two characteristics. The results are in the following table$\chi^2 = 4.02$$\chi^2 = 14.24$ text/html 2017-03-30T07:58:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-25&rev=1490885894&do=diff Mathematics 120 - Spring 2017 Homework Section 7.1 Exercise Set A: 1 Section 7.2 Exercise Set B: 1 Section 7.3 Exercise Set C: 1 Section 7.4 Exercise Set D: 1, 2, 3, 4, 5, 6 Section 7.5 Exercise Set E: 1, 2, 4, 5 Section 8.1 Exercise Set A: 1, 2, 4, 5, 6 text/html 2017-04-02T10:56:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-26&rev=1491155816&do=diff Mathematics 120 - Spring 2017 Homework Section 8.2 Exercise Set B: 1, 2, 3, 4, 5, 6 Section 8.3 Exercise Set C: 1, 2, 3, 4 Section 8.4 Exercise Set D: 1 text/html 2017-04-04T08:58:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-27&rev=1491321499&do=diff Mathematics 241 - Spring 2016 Homework Section 9.1 Exercise Set A: 2, 3, 4, 5, 6, 8, 9, 10 Section 9.2 Exercise Set B: 1, Section 9.3 Exercise Set C: 1, 2, 4 Section 9.4 Exercise Set D: 1, 2 Section 9.5 Exercise Set E: 2, 3, 4, 5, 6 text/html 2017-04-06T11:26:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-28&rev=1491503180&do=diff Mathematics 120 - Spring 2017 Homework Homework Section 10.1 Exercise Set A: 1, 2, 4 Section 10.2 Exercise Set B: 1 Section 10.3 Exercise Set C: 1 Also: For Karl Pearson's study of the heights of 1078 fathers and sons discussed in Section 8.1, we have $\bar{x} = 67.69$$\bar{y} = 68.68$$\mathrm{SD}_x = 2.74$$\mathrm{SD}_y = 2.81$$r = 0.50$$y = 0.51x + 34.16$$67.31$$72.41$ text/html 2017-04-18T11:38:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-29&rev=1492540709&do=diff Mathematics 120 - Spring 2017 Homework Homework Section 10.4 Exercise Set D: 1, 2, 3 Section 10.5 Exercise Set E: 1, 2, 3 Section 11.2 Exercise Set B: 1, 2, 3 text/html 2017-04-20T06:55:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://dananne.org/dw/doku.php?id=math-120:m120-s17-hw:hw-30&rev=1492696544&do=diff Mathematics 120 - Spring 2017 Homework Homework Section 29.1 Exercise Set A: 1, 2 Section 29.2 Exercise Set B: 1, 2, 3, 4, 5, 6, 7, 8 Section 29.3 Exercise Set C: 1, 7 Section 29.4 Exercise Set D: 1, 2 Section 29.5 Exercise Set E: 1, 3