An aircraft seam requires 21 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with the same probability. (Round your answers to four decimalplaces.)(a) If 23% of all seams need reworking, what is the probability that a rivet is defective?(b) How small should the probability of a defective rivet be to ensure that only 10% of all seams need reworking?

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Answered: An aircraft seam requires 21 rivets.…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Similar questions

A psychology quiz consists of ten true-or-false questions. If a student knows the correct answer to six of the questions but determines the answers to the remaining questions by flipping a coin, what is the probability that she will obtain a score of at least 90%? (Round your answer to three decimal places.)
In an election, 18 percent of the people voting at a precinct vote against Proposition A. If voters are randomly being chosen to be surveyed. What is the probability that the first person interviewed against the proposition will be the 5th person interviewed. Your answer should be given to 4 decimal places?
An insurance company has written 50 policies for $125,000, 100 policies for $30,000, and 250 policies for $10,000 for people of age 20. If experience shows that the probability that a person will die at age 20 is 0.0012, how much can the company expect to pay out during the year the policies were written?
Suppose that a clinical test for a rare disease produces 97% true positives and 95% of true negatives. It is also known that only 0.5% of the general population has the disease. What is the probability that a randomly selected individual with a positive test has the disease? Give your answer correct to four decimal places.
An aircraft seam requires 24 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with the same probability. (Round your answers to four decimal places.) (a) If 20% of all seams need reworking, what is the probability that a rivet is defective? (b) How small should the probability of a defective rivet be to ensure that only 9% of all seams need reworking?
33% of a certain breed of rabbits are born with long hair. What is the probability that in a litter of 8 rabbits, exactly 1 will have long hair? (Give your answer correct to three decimal places.)
An aircraft seam requires 26 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with the same probability. (Round your answers to four decimal places.) (a) If 24% of all seams need reworking, what is the probability that a rivet is defective? 0.010 X (b) How small should the probability of a defective rivet be to ensure that only 5% of all seams need reworking?
Question 2 (a) One of the famous fast-food chains in Malaysia has a brand name recognition rate of 95% around the world. If we randomly select 16 people, (i) compute the probability that exactly 13 people recognize the brand. (ii) compute the probability that between 5 and 12 people do not recognize the brand.
34% of a certain breed of rabbits are born with long hair. What is the probability that in a litter of 11 rabbits, exactly 6 will have long hair? (Give your answer correct to three decimal places.)
Question 8 47% of all violent felons in the prison system are repeat offenders. If 50 violent felons are randomly selected, find the probability that a. Exactly 25 of them are repeat offenders. b. At most 22 of them are repeat offenders. c. At least 25 of them are repeat offenders. d. Between 20 and 24 (including 20 and 24) of them are repeat offenders. Submit Question
Question 1 A new car warehouse has 200 cars. It is known that 75% of the cars have air-conditioning, 30% are manual the rest are automatic. It is also known that 40% of the manual cars have air- conditioning. a. Complete the following table. automatic car manual car Total car has air-conditioning car does not have air-conditioning Total One car is selected at random, find the probability, giving all answers correct to three decimal places that the car b. has air-conditioning and is an automatic. c. has air-conditioning or is an automatic. d. has air-conditioning given that it is an automatic. e. is an automatic if it has air-conditioning.

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