Question 22cr поThe employees of acompany were Surveyodregarding their educational background (collège degreecollege degree) and marital Status (Single or married) of the Gooemployees, 200 had college degrees, 200 were single, and60 were single college graduates. The probability that anemployee of the company is maried or has a college degree is:a) 0.10b) 0.667c) 0.933d) 0.7667e) 0.733on questionson

single married total had college degree 60 140 200 not have college degree 140 260 400 total…

Answered: Question 22 The employees of a on…

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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Aunt Sally lives in the UK and frequently audio calls her relatives in Pakistan. Let’ssuppose that 55% of her audio calls were preceded by a voice note, and over the spanof the past year, she has made around 10 calls home. What is the probability that:a) At most 6 of the voice calls made were preceded by a voice note? (2)b) Exactly 6 voice calls were preceded by a voice note? (2)c) At least 6 of her voice calls were preceded by voice notes? (2)
Please assist with some explanation because I am very lost.a) On average 2.5 faulty reports are made to a company’s switchboard per day.i. Name the random variable present in this problem and state its distribution. Calculate the probability that ii. FOUR faulty reports will be made on Monday iii. Less than 3 faulty reports in a 5-day work week b) The number of attempts at shooting goals made by a netballer in a tournament can be modelled by a binomial distribution with a probability of success equal to 0.35. (i) In a sample of 12 attempts at shooting goals, calculate the probability that EXACTLY 4 were successful. (ii) Given that the netballer made a total of 120 attempts at shooting goals in a tournament, calculate the expected number of successful shoots.
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The same issue of The Chronicle for Higher EducationAlmanac referenced in the previous exercise also reportedthe following information for Ph.D. degrees awarded byU.S. colleges in the 2013–2014 academic year:A total of 54,070 Ph.D. degrees were awarded.12,504 of these degrees were in the life sciences.9859 of these degrees were in the physical sciences.The remaining degrees were in majors other thanlife or physical sciences.What is the probability that a randomly selected Ph.D. student who received a degree in 2013–2014a. received an degree in the life sciences?b. received a degree that was not in a life or a physicalscience?c. did not receive a degree in the physical sciences?
In a certain country, the true probability of a baby being a boyis 0.534. Among the next nine randomly selected births in the country, what is the probability that at least one of them is a girl?
2. What is the probability that a waitress will refuse to serve alcoholic beverages to only 2 minors if she randomly checks the IDs of 6 students from among 9 students of which 4 are not of legal age?
The Environmental Protection Agency (EPA) has contracted with your company for equipment to monitor water quality for several lakes in your water district. A total of 10 devices will be used. Assume that each device has a probability of 0.01 of failure during the course of the monitoring period. a) What is the probability that none of the devices fail? b) What is the probability that two or more devices fail? c) If the EPA requires the probability that none of the devices fail to be at least 0.95, what is the largest individual failure probability allowable?
An IRS auditor randomly selects 3 tax returns fro 49 returns of which 6 contain errors. What is the probability that she selects none of those containing errors?
In a survey of 169 people, the following data were obtained relating gender to color-blindness: Color-Blind (C) Not Color - Blind \overline C Total Male (M) 68 49 117 Female (F) 26 26 52 Total 94 75 169 A person is randomly selected. What is the probability that the person is: a) Male? 0.6923 b) Male and Color-blind? 0.4024 c) Male given that the person is Color-blind?
The denver post reported that a recent audit of Los Angeles 911 calls showed that 85% were not emergencies. Suppose the 911 operators in Los Angeles have just received 4 calls. a) what is the probability that all four calls are, in fact, emergencies ? (Round answer to five decimal places) b) what is the probability that two or more calls are not emergencies? (Round to five decimal places) c) what is the smallest number of calls that the 911 operators need to answer to be at least 93% or more sure that at least one call is an emergency? (Round to whole number)
a) A recent poll found that the mayor of a small town had the approval of 52% of the population. A new poll is being conducted one week before the election with a total of 324 randomly selected individuals. What is the probability that this poll finds the mayor’s approval below 50% ? b) It is estimated that 13.1% of Americans are left handed. What is the probability that a random sample of 100 Americans has between 10 and 15 left-handed people?
The probability that a first-time tourist to the city ofChicago will visit the Art Institute is 0.4, will visit the Museumof Science and Industry is 0.3, and will visit both is 0.1. If afirst-time tourist to Chicago is randomly selected, find theprobability that the tourist will visit the Art Institute or theMuseum of Science and Industry.

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