A survey was carried out on 150 tourists to Wales asking which of the following museums, if any, they had visited:• St Fagans National History Museum• National Museum Cardiff• Big Pit National Coal Museum27 of the visitors had visited St Fagans National History Museum and National Museum Cardiff and, of these, 8 had visited all themuseums.72 of the people had visited Big Pit National Coal Museum.70 of the people had visited St Fagans National History Museum.Some further information is given on the Venn diagram below. How many visitors had visited National Museum Cardiff?St FagansNational History National CoalMuseumBig PitMuseum201021National Museum National MuseumCardiff38B5828D48

We have to find how many visitors had visited National Museum Cardiff.

Answered: A survey was carried out on 150…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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2. The Department of Fish and Wildlife looked at the ages of individuals between 65 and 81 that frequented the Bolsa Chica Reserve during the week of June 13th, 2021, to help determine if more facilities and resources are necessary to support the needs of that age group. They determined there were 40 individual visitors that fit those criteria, with the following ages: 65, 66, 66, 67, 67, 67, 68, 68, 68, 68, 69, 69, 69, 69, 69, 69, 70, 70, 70, 70, 70, 71, 71, 71, 71, 72, 72, 72, 73, 73, 73, 74, 74, 75, 75, 76, 77, 78, 79, and 80. Age (years) Number of Visitors 65 1 66 2 67 3 68 4 69 6 70 5 71 4 72 3 73 3 74 2 75 2 76 1 77 1 78 1 79 1 80 1 81+ 0 What would you say is the best measure of central tendency for the weekly visitor distribution? How should the Department of Fish and Wildlife report it? Justify your response.
5. Solve the following problem using a Venn diagram: Consider the following data among 110 students in the college dormitory: 30 students are on a list A (taking Accounting); 35 students are on a list B (taking Biology); and 20 students are on both lists. Find the number of students on list A or B*
A survey of people who attended the Mombasa New Year celebrations at Mombasa villageyielded the following results:120 were women150 spoke Swahili170 were married108 of the men spoke Swahili100 of the men were not married18 of the non-Swahili-speaking women were married78 non-Swahili-speaking men were not married30 of the women who spoke Swahili were marriedRequired(i) Represent this information on a Venn diagram.(ii) How many people attended?(iii) How many of those who attended did not speak Swahili?(iv) How many women were not married?(v) How many of those who were married were Swahili-speaking men?
85 cities were surveyed to determine sports teams. 25 had soccer, 19 had rugby, 18 had basketball, 11 had soccer and rugby, 12 had soccer and basketball, 11 had rugby and basketball. 6 had all three. Let A = soccer, B = rugby, C = basketball. How many had only a basketball team? 1 How many had soccer and rugby, but not basketball? 5 How many had soccer or rugby? 33 How many had soccer or rugby, but not basketball? 16 How many had exactly two teams? U A I IV II VII VI III с B VIII
2. A criminal profiler is seeking to create a profile and notes that a suspect liked to watch the fire trucks arrive at the fires that he set. What is this an example of? Antecedent Body disposal Post-offense behavior Method and manner
3. The director of library services at Fairmont College did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 4217 books checked out last term and classified the books in the sample by subject. The results are shown below. Subject Area % Books in Circ Library on this Subject No. of Books in the Sample on this Subject Business 32% 1210 Humanities 25% 956 Natural Science 20% 940 Social Science 15% 814 Other Subject 8% 297 Using a 5% level of significance, test the claim that the subject distribution of books in the library fits the distribution of books checked out by students.
1. After graduation ceremonies at a university, six graduates were asked whether they were in favor of (identified by 1) or against (identified by 0) the legalization of divorce in the country. Some information about these graduates is shown below. Graduate Gender Age Divorce Issue Class Rank Anna F 22 1 1 Ben M 20 1 2 Carmela F 31 0 3 Don M 27 0 20 Erica F 23 1 4 Floyd M 25 1 8 1. How many respondents are there in the data set? 2. How many variables are there in the data set? 3. How many observations are there in the data set? 4. Which of the above variables (Gender, Age, Divorce Issue, Class rank) are qualitative and which are quantitative variables? 5. Are arithmetic operations appropriate for the variable "divorce issue"? Why or why not?
In a survey conducted at the Kumasi Technical Institute, the percentage of students studying various courses were found to be as follows: Leatherworks only, 18%, leatherwork, 26%, plumbing, 48%. Plumbing and Graphic Design but not leatherwork, 5%, Leatherwork not Graphic Design, 23%. Leatherwork and Plumbing, 8%. 24% of the students studied none of these courses. Find the percentage of studying the following using Venn diagram Graphic design only Plumbing only Leather work and graphic design All three courses

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