MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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In a certain town 90% of the people believe in global warming; 10% of the people do not. What is the probability of picking five
people and having exactly one of them not believe in global warming?
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- Approximately 11% of students at BCC are Criminal Justice majors. If you take a simple random sample of 10 BCC students, what is the probability that 4 students are Criminal Justice majors?arrow_forwardSuppose that 57% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 3 places) or fractionarrow_forwardAt a bar, 30% of those in attendance are football fans, 50% in attendance are soccer fans, and 20% in attendance are hockey fans. You may assume these sports fandoms are mutually exclusive. The probability that a football fan is wearing a red shirt is 15%. The probability that a soccer fan is wearing a red shirt is 45% and the probability that a hockey fan is wearing a red shirt is 85%. You have just talked to a randomly selected person who was wearing a red shirt, but forgot to ask them their preferred sport. What is the probability that they are a soccer fan? What is the probability that a randomly selected bar patron is a soccer fan AND they are wearing red? What is the probability that a randomly selected part goer is a soccer fan OR they are wearing red?arrow_forward
- This problem involves students who have taken Calculus in high school. Assume that 35 percent of students have taken calculus in high school. Of those who have taken calculus in high school, 75 percent plan to major in science. Of those who did not take calculus in high school, only 20 percent plan to major in science. What is the probability that a randomly selected student plans to major in science?arrow_forwardApproximately 18% of shoppers used cellphones to look for deals. THe probability of making a purchase was 0.45 if a person used a cell phone to shop. For a randomly selected shoppers, what is the probability that the person used a cell phone and made a purchase?arrow_forwardA candy company claims that 31% of candies are orange. We randomly sample 100 candies. We wish to know the probability our sample is 29% orange candies or less. Find the probability our sample is 29% orange candiesarrow_forward
- Airlines report that 45% of its flights are on time. In a random sample of 80 flights, what is the probability that exactly 42 will be on time?arrow_forwardAbout 45% of students participate in a community volunteer program outside of school. If 50 students are selected at random, find the probability that at most 25 of them participate in a community volunteer program outside of school.arrow_forwardIt is known that 70% of Canadian adults have a passport. What is the probability that you have to stop exactly four people at random before you find the first one that holds a passport?arrow_forward
- An anthropologist wants to determine the probability that exactly 15 out of 25 ancient civilizations collapsed because of poor leadership. If the probability of the civilizations collapsing because of poor leadership is 72%, the number of trials is and the number of successful trials is The probability that exactly 15 out of 25 civilizations collapsed because of poor leadership isarrow_forwardSuppose that during this time of virus, 56% of people outside are wearing face masks. If you walk up to three random people, what is the probability that none of the three people will be wearing masks? Group of answer choices 32.5% 8.5% 41.4% 17.6%arrow_forwardYou took a multiple-choice math test where there were 10 questions and each question had 4 answers to chose from (but only one of them was correct). What is the probability that you get exactly 9 correct? Be sure to identify your variables.arrow_forward
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