QUESTION NO. 1If 30% of the bolts produced by a machine are defective, determine the probability that outof 4 bolts chosen at random, 1 bolts will be defective.Your answerI

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Answered: QUESTION NO. 1 If 30% of the bolts…

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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Question 1. Compilation of results from a clinical trial reveals that 475 of 601 cases survive at least 5 years after diagnosis. Based on this information, estimate the probability of surviving at least 5 years.a. Probability of surviving at least 5 years is estimated to be 0.79 b. Probability of surviving at least 5 years is estimated to be 0.50c. Probability of surviving at least 5 years is estimated to be 0.21 d. Probability of surviving at least 5 years is estimated to be 1.27
QUESTION 5 A company's report shows that. 18% receive a salary increment. 7% of its workers had been receives the staff's award for the Year 2022 3.5% had received the staff's award and received a salary increment. a) Find the probability that a worker has received the staff's award, given that he/she has never received salary increment. b) Find the probability a worker receives salary increment or has received the staff's award. c) Find the probability a worker has never received the salary increment. d) Find the probability a worker has never received both.
A software company is interested in improving customer satisfaction rate from the 60% currently claimed. The company sponsored a survey of 148 customers and found that 95 customers were satisfied. What is the test statistic z?
QUESTION 19 A recent survey of 2500 people who own tablets showed that 1,654 use the device to play games, 1,001 use the device to read emails and 772 do both-play games and read emails. Suppose a tablet user is selected at random, what is the probability that he/she plays games or reads emails? Round your answer to four decimal places.
Jack has just been given a ten-question multiple choice quiz in history class. Each question has five answers, of which only one is correct. Since Jack has not attended class recently, he does not know any of the answers. Assuming Jack guesses randomly on all ten questions, find the probability that he will answer six or more of the questions correctly and avoid an F.
Question 2 A new drug is in the process of being approved by the FDA. The drug is being tested in 10 mice, and there is a 8% chance that a mice will die from the drug in the trial. Calculate the probability exactly two mice die. 14.8% 4.3% 8% 84.2%
Question 13 of 16 There are 4 options on the dessert menu at a restaurant. Bill and Laura like all of the choices equally, so they each choose a dessert at random from the menu. What is the probability that Bill will choose apple pie and Laura will choose strawberry cheesecake for dessert? Express your answer as a decimal. If necessary, round your answer to the nearest thousandth. 0.063 0.938 0.083 0.25
Question 2 2.1 Solve the below problem: Caltex, a South African oil company will drill a succession of holes in a given area to find a productive well. The probability that they are successful on a given trial is 0.4. 2.1.1 What is the probability that the third hole drilled is the first hole to yield a productive well?
Question 20 Read and solve the problem; choose the best answer(s) from the choices provided. Senion at Central igh scheol Facebook Users Tuitter Uers 93 34 15 What is the probability that a student is not a Twitter user? Your answer: O 0.95 0.72 0.62 0.10
QUESTION 3 At a particular garage 20% of the cars that arrive for repair have engine trouble. Upon arrival at the garage an engine diagnostic test is carried out on the car, but this engine diagnostic test is far from perfect. If the car has engine trouble the diagnostic test will turn out positive with a probability of 0.9. If the car does not have engine trouble, the diagnostic test will turn out positive with a probability of 0.05. For each of the questions below explain your answer i.e. show your reasoning. Q 3(d) If 10 cars arrive to the garage on a particular day, what is the probability that: (i) (ii) none of the cars will have engine trouble. the first car with engine trouble that arrives to the garage that day will be the 4th car.

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QUESTION NO. 1 If 30% of the bolts produced by a machine are defective, determine the probability that out of 4 bolts chosen at random, 1 bolts will be defective. Your answer I