Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. Apollster contacts 94 people in the 18-21 age bracket and finds that 80 of them respond and 14 refuse torespond. When 265 people in the 22-29 age bracket are contacted, 241 respond and 24 refuse to respond.Assume that 1 of the 359 people is randomly splected. Find the probability of getting someone in the 22-29age bracket or someone who refused to respornd.Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol.P(22-29 or refused)%%3D(Hint: It might be helpful to organize the data into a table first.)Question Help: Written Example Message instructorSubmit QuestionJump to Answer

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Answered: Pollsters are concerned about declining…

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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The histogram below gives the length of service of members of the Department of English at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and the vertical axis represents the number of faculty. 1) What percent of the department faculty have less than 15 years of service? 2) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 5 and 45 years of service? 3) What is the probability the representative above will have less than 20 years of service given that the person has less than 25 years of service?
About 7% of the popular has a mutation. 100 people are randomly selected. What is the mean for the number of people with a mutation?
Suppose that 28% of people own dogs. If two people are randomly selected, what is the probability that they both own a dog?
About 2.5% of Canadians have blood type AB. If 25 Canadians are selected randomly, ving. The exact probability that less than 2 have blood type AB. The exact probability that 23 have blood type other than AB. The approximate probability that at least one has blood type AB.
Consider a political discussion group consisting of 4 Democrats, 9 Republicans, and 6 Independents. Suppose that two group members are randomly selected, in succession, to attend a political convention. Find the probability of selecting two Democrats.
A recent study shows that 4% of California residents consider purchasing an electric car . If we randomly choose 10 residents, what’s the probability that 2 of them consider purchasing an electric car?
A survey showed that 71% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 8 adults are randomly selected, find the probability that at least 7 of them need correction for their eyesight. Is 7 a significantly high number of adults requiring eyesight correction?
Sixteen percent of all sports cars are painted red. Given a random sample of 250 sports cars, find the probability that exactly 31 of them will be painted red.
Suppose that 40% of Tulane undergraduates intend to continue on to graduate school after completing their undergraduate degrees. Suppose we randomly select 20 Tulane undergraduates. Find the probability that at least 11 of the students in the sample intend to continue on to graduate school.
Suppose that 20% of fruit flies possess a certain gene. If we randomly select 20 fruit flies, find the probability that at least 5 flies in the sample possess the gene. You may assume sampling with replacement.
Suppose that 20% of fruit flies possess a certain gene. If we randomly select 20 fruit flies, find the probability that at least 7 flies in the sample possess the gene. You may assume sampling with replacement.
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 102 people in the 18-21 age bracket and finds that 87 of them respond and 15 refuse to respond. When 249 people in the 22-29 age bracket are contacted, 220 respond and 29 refuse to respond. Assume that 1 of the 351 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who responds. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. P(22-29 or responds) = %3D (Hint: It might be helpful to organize the data into a table first.) Submit Question 17,194 7. NOV tv 17 MacBook Air

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