Researchers carried out a survey of fourth-, fifth-, and sixth-grade students in Michigan. Students were asked whether goodgrades, athletic ability, or being popular was most important to them. The two-way table summarizes the survey data.Supposewe select one of the students at random.Mostimportant4thgradeGrades49Athletic 24Popular19Total 92Grade5thgrade5036221086thgrade6916838982869135 335TotalWhat is the probability that the student is not a sixth-grader and did not rate good grades as important?24+36+19+22= 0.60598+6924+36+19+22 = 0.3013351 - 6933524+36+19+2292+108= 0.794= 0.50592+108+98+69-38-28335= 0.899

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Answered: Researchers carried out a survey of…

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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A random sample of car buyers was asked to respond to a survey about what was the most important quality of the car they purchased. This question is summarized in the table below. The important contributors were fuel efficiency, looks, manufacturer reputation, price or other. If one car buyer is randomly chosen from the group, what is the probability amongst female buyers that they chose "price" as their most important factor for the purchase? Manufacturer Efficiency Looks Reputation Price Other Total Fuel Male 29 15 20 23 96 18 17 26 39 4 104 Female Total 47 32 46 62 13 200 O A. 0.375 О В. 0.240 OC. 0.629 O D. 0.310
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The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 93 Some chance but probably not 149 167 A 50-50 chance 462 511 A good chance 746 704 Almost certain 1192 758 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of opinion…
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which of the following describes the sample space of a probability experiment? A. any collection of outcomes of the probability experiment. B. The set of all possible and equally likely outcomes of the probability experiment. C. events that have no outcomes in common. D. The sum of all possible outcomes of a probability experiment.
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1. On-time arrivals, lost baggage, and customer complaints are three measures that are typically used to measure the quality of service being offered by airlines. Suppose that the following values represent the on-time arrival percentage, amount of lost baggage, and customer complaints for 10 U.S. airlines. a. Based on the data above, if you randomly choose a Delta Air Lines flight, what is the probability that this individual flight will have an on-time arrival? b. If you randomly choose 1 of the 10 airlines for a follow-up study on airline quality ratings, what is the probability that you will choose an airline with less than two mishandled baggage reports per 1,000 passengers? c. If you randomly choose 1 of the 10 airlines for a follow-up study on airline quality ratings, what is the probability that you will choose an airline with more than one customer complaint per 1,000 passengers? d. What is the probability that a randomly selected AirTran Airways flight will not arrive on…
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