Suppose you are a researcher, and are examining how students make their way touniversity campuses. You take a survey of students and the method of transportationthey took, summarized in the contingency table below:TransportationType\Year of StudyWalkingFourth YearFirst YearSecond YearThird Yearand above501229172101Bus22327613197Car89129134201Using this information, what is the probability of randomly selecting a student in firstor second year, given that they use a bus to get to campus? Provide your answer inpercentage, accurate to two decimal places (note the row and column sums are notincluded).55.28%37.96%79.04%30.67%68.64%

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Answered: Suppose you are a researcher, and are…

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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В. Forty five percent of the streets in an area have private guards for security. Three streets are selected at random: i. What is the probability all three of the selected streets have private guards? What is the probability none of the three selected streets has private guards? What is the probability at least one of the selected streets has private guards? iv. ii. iii. What is the probability at most two of the selected streets have private guards?
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The percentage of mechanical-, civil-, aeronautical-, industrial-, and chemical-engineer- ing students in the course, Engineering Mathematics, is, respectively, 25, 20, 15, 22, and 18. The probability of a mechanical-, civil-, aeronautical-, industrial-, and chemical-en- gineering students getting the grade A is 0.7, 0.6, 0.8, 0.5, and 0.65, respectively. If a student chosen at random at the end of the semester earned an A in the course, find the probability of the student belonging to mechanical engineering.
In a class of students, the following data table summarizes how many students passed a test and complete the homework due the day of the test. What is the probability that a student chosen randomly from the class did not complete the homework? Passed the test Failed the test Completed the homework 11 7 Did not complete the homework Answer: Submit Answer attempt 4 out of 4 problem 1 out of max 1
A. What is the probability of a student chosen at random liking both Hannah Montana and suite life of Zach and Cody ?
The following table gives the percentage of students enrolled in one mathematics courses at a university. The college level transfer courses are College Algebra, Statistics, and Liberal Arts Math. PreAlgebra 5% Statistics Elementary Liberal Arts Algebra Math Intermediate Algebra %0% College Algebra 25% prials vas get A student who is taking only one mathematics course is selected. What is the probability a student is taking transfer level math? (Enter without a percent sign)
Role-playing games like Dungeons & Dragons use many different types of dice. Suppose that a four-sided die has faces marked 1, 2, 3, and 4. The intelligence of a character is determined by rolling this die twice and adding 1 to the sum of the spots. The faces are equally likely, and the two rolls are independent. What is the average (mean) intelligence for such characters?
Department Sex Packaging shipping total Female 32 48 80 male 48 72 120 Total 80 120 200 A local mail-order catalog business employs 200 people in the packaging and shipping departments. The personnel department maintains the records shown in Table below. Questions have arisen whether there has been a tendency to place female workers in the packaging department instead of in the shipping department. Management feels that there is no relationship between being female and working in the packaging department. They feel that these two events are independent. If an employee is selected at random from the 200 total employees, what is the probability that the employee works for the packaging department? A) if the employee selected at random is male, what is the probability that he works for the shipping department? B) if the employee selected at random is male, what is the probability that he works for the packaging department? C) is the probability of being male…
Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Negative test result Drug Use Is Indicated Drug Use Is Not Indicated Subject Uses Drugs 42 11 Subject Is Not a Drug User 17 34
There are three areas of funding being reviewed: school, roads, and administrative. Each category can experience an increase, a decrease, or no change to the amount of funding it receives. Using a list, what is the probability of at least two areas with no change to funding, assuming all options have equal probability?
Practice question #7. A company has 3 assembly lines for making components: A1 is the event that a component is made on the first assembly line, A2 is the event a component is on the second line, and A3 is the event a component is on the third line. D is the event that a component is defective. A sample of 1000 components is taken and represented in this table below. Fill in the missing blanks, then answer the following questions. In A-G youmay leave as fractions or round to 3 decimal places as needed. A. Find P(A1) B. Find P(D) C. Find P(DC) D. Interpret what P(DC) means in practical terms, in the context of this problem. Write a sentence. E. Find P(D ∩ A1) F. Find P(D ∪ A1) G. Find P(A1|D). (In other words, if we know a component is defective, what is the likelihood it was madeon the first assembly line?) Show a little work. H. Find P(D|A1). (In other words, if we know a component was made on the first assembly line, what isthe likelihood it is defective?) I. Continue referring to…
A cell phone company collects the following data for a month on their customers:The company plans to build a cell phone tower at any one of the areas. It is based on the probability of a customer available in a particular area in the month.Which area will they choose to build the tower?

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