An article describes a survey of 2,096 adult Americans. Survey participants were asked if they were football fans and also if they agreed or disagreed that the rules that theNational Football League adopted in 2010 designed to limit head injuries have been effective. Data from the survey are summarized in the table below.Football FanNot a Football FanTotal(i) P(A) = 0.4399(ii) P(D) = 0.5601(iii) P(A|F) =(iv) P(A|FC) =Agree703219922Disagree Total513 1,216Suppose that a survey participant is to be selected at random. Consider the following events.A = event selected participant agreed that the rules have been effectiveD = event selected participant disagreed that the rules have been effectiveF = event selected participant was a football fan(a) Calculate the following probabilities. (Round your answers to four decimal places.)6618801,174 2,096(b) Are the events F and A independent events? Justify your answer using relevant probabilities.Yes, the events F and A are independent because P(A|F) ‡ P(A)Yes, the events F and A are independent because P(A|F) = P(A)No, the events F and A are not independent because P(A|F) = P(A)O No, the events F and A are not independent because P(A|F) ‡ P(A)

The question is about probability.Given :To find :a ) P ( A ) , P ( D ) , P ( A | F ) , P ( A | Fc…

Answered: An article describes a survey of 2,096…

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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Read the following on attendance and grades, and answer the questions. A study revealed that students from a certain local college in Bulacan who attended class 95 to 100% of the time usually received a grade of 1.0 in the class. Students who attended class 80 to 90% of the time usually received a 1.5 or 1.75 in the class. Students who attended class less than 80% of the time usually received a 3 or a 5 or eventually withdrew from the class. Many factors affect a student’s grade in a course. One factor that has considerable control over is attendance. One can increase the opportunities for learning by attending class more often. 1. What are the variables under study? Answer: 2. Which are the dependent and independent variables in the study? Answer: 3. Categorize each variable as quantitative or qualitative. Answer: 4. Categorize each quantitative variable as discrete or continuous. Answer: 5. Identify the level of measurement for each variable. Answer: 6. Are descriptive,…
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Read the following on attendance and grades, and answer the questions. A study revealed that students from a certain local college in Bulacan who attended class 95 to 100% of the time usually received a grade of 1.0 in the class. Students who attended class 80 to 90% of the time usually received a 1.5 or 1.75 in the class. Students who attended class less than 80% of the time usually received a 3 or a 5 or eventually withdrew from the class. Many factors affect a student’s grade in a course. One factor that has considerable control over is attendance. One can increase the opportunities for learning by attending class more often. a. From the information given, comment on the relationship between the variables Answer: b. What type of survey do you think is most appropriately used for the study? Answer: c. Do you think the use a random method for deciding who would be in the sample is appropriate? Why? Answer:
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The following table shows some data from a study on substance use among 10th graders in the United States and Europe. Smoked Cigarettes Cigarette-Free Totals U.S. 14,000 Europe 96,000 Total 71,210 110,000

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