2A university cafeteria surveyed its customers for their coffee preferences.The findings are summarized as follows:do not drink coffee prefer regular coffee prefer decaffeinated coffee totalFemaleMale23145692371819646260totals41341497115A student is selected at random from this group. Find the probability that:a) the student does not drink coffeeb) the student is a female who prefers regular coffeec) the student prefers decaffeinated coffee, given that student is maled) the student is a female, given that the student prefers regular coffeee) the student does not drink coffee or prefer decaffeinatedf) the student is a male or prefer regular coffee.

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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 university conducted a survey of 272 Sophomore, Junior, and Senior undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank. Sophomore Junior Senior Total Satisfied 48 65 59 172 Neutral 16 18 9. 43 Not satisfied 16 14 27 57 Total 80 97 95 272 A survey participant is selected at random. What is the probability that he or she is a Junior or Senior? The probability that a student is a Junior or a Senior is (Round to three decimal places as needed.)
According to reports, 30% of American adults have chronic insomnia. If 3 American adults are chosen at random, what is the probability that all 3 have chronic insomnia? A) 0.90 B) 0.027 C) 0.093 D) 0.075 E) 0.8437
The table below shows the number of survey subjects who have received and not received a speeding ticket in the last year, and the color of their car. Find the probability that a randomly selected person: Speeding tcket No speeding Bcket Red car 15 135 Notred ca 45 470 fotal ts a) has a speeding ticket given they have a red car b) has a red car given they have a speeding ticket 8 88
1) The question screenshot attached down below just need final answer.
Use the data in the table below, which shows the employment status of individuals in a particular town by age group. Age Full-time Part-time Unemployed 0—17 25 177 372 18—25 341 194 344 26—34 460 67 27 35—49 558 179 339 50+ 475 176 362 If a person is randomly chosen from the town's population, what is the probability that the person is under 18 or employed part-time?
A random sample of 1000 adults has the elements of the sample classified by sex (= Male or Female) and educations ( = College, high School or Elementary). The results are summarized in the contingency table below. College High School Elementary Male 130 270 140 Female 170 180 110 Find the probability that a randomly selected person who is selected from the survey members is male, given that the individual finished college.
8) Given the following table with eye color and hair color for a sample of 592 people... Black hair Brown hair Blond hair 16 10 Red hair Total Green eyes Hazel eyes Blue eyes Brown eyes Total 29 14 14 15 54 84 119 20 17 26 94 68 a) What percent of people with brown hair have blue eyes? b) What is the probability someone with green or hazel eyes has red hair? 102 F Par 99+
Based on a study by Dr. P. Sorita at Indiana University, assume the eye colors in the United States are distributed as follows: 40% brown, 35% blue, 12% green, 7% gray, 6% hazel a. If one person is randomly selected, what is the probability that this person will have brown or blue eyes? b. If two people are randomly selected, what is the probability that at least one of them has brown eyes?
Based on a smartphone survey, assume that 51% of adults with smartphones use them in theaters. In a separate survey of 248 adults with smartphones, it is found that 110 use them in theaters. a. If the 51% rate is correct, find the probability of getting 110 or fewer smartphone owners who use them in theaters. b. Is the result of 110 significantly low? a. If the 51% rate is correct, the probability of getting 110 or fewer smartphone owners who use them in theaters is (Round to four decimal places as needed.) b. Is the result of 110 significantly low? v because the probability of this event is v than the probability cutoff that corresponds to a significant event, which is Question Viewer Enter your answer in the answer box. ? PAGES 1377 NOV W 14 MacBook Air DII 80 888 F10 F6 F7 F8 F3 F4 F5 %24 2 3 4 7 R T. Y く0 E.
2. Use the table below, based on the most recent survey of moviegoers who viewed movie Joker, to answer the following questions. (The cell values are frequencies). Rating Fantastic Very good OK Pretty bad Awful Male 34 18 47 14 17 Gender Female 27 19 44 12 26 a) Determine the probability a moviegoer selected at random rated Joker as "Very good" or better (L.e., "Very good" or "Fantastic"). b) Determine the probability a Female moviegoer selected at random rated Joker as "Very good" or better (meaning "Very good" or "Fantastic"). c) Given your answers to Parts a), b), and c), are the two variables - Joker ratings and Gender-statistically independent?
A random sample of cars was classified by size: small, medium, and large, and by region of manufacture: Asia, Europe, and North America. The following data resulted: Size of Car Small Mid-size Total Region of Manufacture Asia 92 54 2 148 Europe 19 17 40 North America Total 26 53 36 115 137 124 42 1. Among the cars manufactured in Asia, what is the probability of selecting a large car? 2. What is the probability of selecting a car that is mid-size or manufactured in North America? 3. What is the probability of selecting a car manufactured in Europe? If three cars are selected at random and without replacement, what is the probability they are all small cars manufactured in Asia? 4. Are 'region of manufacture' and 'size of car' independent or dependent? Justify your conclusion mathematically.
A survey of students was conducted to study the relationship between the types of housing a student has and the student's mode of travel to class. The table below contains data gathered in that study. House Apartment Dorm Total Walk 12 44 155 211 Skateboard 26 38 108 172 Car 168 121 3 292 Total 206 203 266 675 Suppose one student is chosen at random. What is the probability the student skateboards to class? O 12.39% O 25.48% 062.79% O 6.14%

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