ma small town only three news papers. A. B. and C, are available for the readers.Suppose that 60% of readers subscribe to newspaper A, that 40% subscribe to newspaperB, and that 30% to newspaper C. Suppose also that 20% of them subscribe to both A andB, that 10% subscribe to both A and C, that 20% subscribe to both B and C, and that 5%subscribe to all three newspapers.Q6a) Construct Venn diagram to present the above situation.b) What percentage of newspaper readers subscribes at least one of the three newspapers?c) What percentage of newspaper readers subscribes none of the three newspapers?

The Venn diagram is a visual representation to show the relation and proportion of each possible…

Answered: Q6 r a small town only three news…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An end of year Mathematics exam for grade 11 students consists of two papers. Paper A and Paper B. The marks in both papers for 7 students are shown below. Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Student 7 63 55 48 50 55 75 92 66 Раper A Раper A 84 53 55 84 84 42 А. = 0.7098 + 0.8117x = 0.7098 + 0.8655x В. У - C. y = 0.6052 + 0.8117x D. y = 0.6052 + 0.8655x
A chain of hardware stores is trying to sell more paint by mailing pamphlets describing the paint. In 15 communities containing one of these hardware stores, the paint sales (in dollars) were recorded for the months before and after the ads were sent out. The paired results for each store follow. Sales after 614 155 797 282 717 462 285 644 509 112 262 362 92 219 285 Sales before 468 211 642 259 681 437 222 473 378 119 114 366 94 297 432 Use a 0.1 level of significance to test the null hypothesis that the advertising had no effect on sales against the alternate hypothesis that it improved sales. (a) State the test used. spearman correlation test rank-sum test runs test sign test answer: sign test (b) Give ?. answer: 0.1 (c) Find the sample test statistic. (Use 2 decimal places for the value of x in your calculations. Use 2 decimal places for your answer.)(d) For the sign test, rank-sum test, and Spearman correlation coefficient test, find the P-value of the sample test…
Suppose the entire cola industry produces only two colas. Given that a person last purchased cola 1, there a 70% chance that her next purchase will be cola 1. Given that a person last purchased cola 2, there is an 75% chance that her next purchase will be cola 2. Suppose that each customer makes one purchase of cola during any week (52 weeks=1 year). Suppose there are 150 million customers. One selling unit of cola costs the company $0.5 to produce and is sold for $2. For $200 million per year, Britney Spears (by an advertising song) guarantees to decrease from 30% to 15% the fraction of cola 1 customers who switch to cola 2 after a purchase. Should the company that makes cola 1 hire Britney Spears?
A chain of hardware stores is trying to sell more paint by mailing pamphlets describing the paint. In 15 communities containing one of these hardware stores, the paint sales (in dollars) were recorded for the months before and after the ads were sent out. The paired results for each store follow. Sales after 612 151 795 285 718 467 285 641 506 119 269 361 97 214 283 Sales before 462 212 647 259 688 436 229 479 374 119 115 369 94 295 435 (c) Find the sample test statistic. (Use 2 decimal places for the value of x in your calculations. Use 2 decimal places for your answer.)(d) For the sign test, rank-sum test, and Spearman correlation coefficient test, find the P-value of the sample test statistic. For the runs test of randomness, find the critical values from Table 10 of Appendix II. (Use 4 decimal places.)
In a certain city, with a population of 1,000,000 people, 17 people have been infected with a disease. Five of these people are superspreaders. Superspreaders do not get sick, but will always be infected. Out of the remaining infected people, 50% do not get sick, and do not isolate, but will spread the disease for a week and then will no longer be infected. 35% will self-isolate and get better. The remaining 15% get sick and are admitted to hospital. Within a week, a superspreader will infect 0.1% of the population. A spreader is only infected for a week but will infect 0.01% of the population. Everyone in self-isolation will recover within a week. 50% of people in hospital will die, while the other 50% make a full recovery. a) Following this trend, what happens to the population over time?
1. 85% of the girls in a school were found to like chocolate, and 60% of them liked ice cream. On theother hand, only 60% and 50% of boys in the school liked chocolate and ice cream, respectively.The ratio of boys to girls in the school was 2:3. If 25% of all students were found to like bothchocolate and ice cream, find the percentage of students that did not like either chocolate or icecream.
6.2
2. Mobile phone operator TELE2 has at least 4 tariffs: Brivais(B), Savejis(S), Smart(SM), Zelts(Z). In 2019Y the proportion of clients for each tariff is: B=5%; S=50%; SM-15%; Z=30%. Possible changes from one type of tariff to another for the following year are the following: to B to S to SM to Z from B 5% 2% 1% 1% 1% from S 3% 1% from SM 5% 5% from Z 5% 4% 3% Find initial distribution, Transition matrix (stochastic matrix), stationary distribution and plot a graph for transition of one step. bain ic the following

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