3.Third-class passengers The Titanic struck an iceberg and sank on its firstvoyage across the Atlantic in 1912. Some passengers got off the ship inlifeboats, but many died. The two-way table gives information about adultpassengers who survived and who died, by class of travel.SurvivedYesNoFirst197122ClassSecond94167Suppose we randomly select one of the adult passengers who rode onTitanic.Third151476(a) Given that the person selected was in first class, what's the probability thathe or she survived?(b) If the person selected survived, what's the probability that he or she was nota third-class passenger?

Given data is Survived Class First Second Third Yes 197 94 151 No 122 167 476

Answered: 3. Third-class passengers The Titanic…

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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The following two-way table represents the results of scores from an exam worth 100 points. Nonmath majors Math majors < 50 4 5 50-59 2 1 (a) How many nonmath majors took the exam? 34 nonmath majors (b) How many students scored less than 50 points? 9 students 60-69 6 1 70-79 15 2 80-89 2 12 90-100 5 2 (c) What percent of students taking the exam scored in the 70s? (Round your answer to the nearest percent.) % (d) What percent of students taking the test were math majors? (Round your answer to the nearest percent.) %
Example 6. In a survey of 500 students in a college 180 were listed as drinking Tea, 275 as drinking coffee and 95 were listed as both drinking Tea as well as Coffee. Find how many students were drinking neither Tea nor Coffee.
A survey asked participants if they liked vanilla ice cream, chocolate ice cream, both, or neither. Of those surveyed, 44% liked vanilla, 68% liked chocolate, and 19% liked neither. What percentage of the students liked both vanilla and chocolate? (1) 17% (3) 27% (2) 22% (4) 31%
How many girls? There are two elementary schools in town. School A has 500 students, and School B has 1000 students. a. At which school is it more likely that 55% or more of the students will be girls?b.At which school is it more likely the percentage of girls will be between 45% and 55%
A company has 30 employees, including a director. The lowest salary among the 30 employees is $22,000. The director’s salary is $180,000, which is more than twice as much as anyone else’s salary. Decide for each of the following statements about the 30 salaries whether it is true, false, or you cannot tell on the basis of the information at hand. • The median salary is below $60,000.• The average salary is below $60,000.• If all salaries are increased by $1,000, that adds $1,000 to the average.• If the director’s salary is doubled, and all other salaries remain the same, that increases the average salary.• If the director’s salary is doubled, and all other salaries remain the same, that increases the median salary.• The standard deviation of the salaries is larger than $180,000
Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graph
Please answer the attached question, including all parts I - IV, with as much explanation as possible. Thank you.
In a survey of college students, it was found that 72 owned a tablet 99 owned a laptop 87 owned a gaming system 45 owned a tablet and a laptop 50 owned a tablet and a gaming system 55 owned a laptop and a gaming system 30 owned all three 5 owned none of these Find the number of students that were surveyed. The number is ???
"Bluth's Original Frozen Banana Stand" is a frozen banana stand founded in 1953 by George Bluth. They offer multiple types of chocolate that you can have your frozen banana dipped in, and they also offer multiple different toppings for your frozen banana. One day when stand employee Michael was working, he wondered whether or not there was a relationship between what customers had their bananas dipped in (milk chocolate, white chocolate, or dark chocolate) and their choice of topping (plain, walnuts, or sprinkles). He recorded the choices of each for 90 different customers, and the resulting data can be seen in the table below. Which cell has the highest Chi Square contribution? Chocolate milk milk milk white white white dark dark dark walnuts, milk Osprinkles, white walnuts, dark O plain, dark Topping plain walnuts sprinkles plain walnuts sprinkles plain walnuts sprinkles Freq. 15 4 11 7 13 10 14 10
A researcher is in how watching a really televison show featuring fashion models influences the eating behavior. The group og 30-13 years old girls selected participate in research study the group of 30-13 years old girl is an example of
A researcher wants to study the relationship between salary and gender. She randomly selects 392 individuals and determines their salary and gender. Can the researcher conclude that salary and gender are dependent? Income Male Female Total Below $25,000$⁢25,000 48 45 93 $25,000$⁢25,000-$50,000$⁢50,000 38 36 74 $50,000$⁢50,000-$75,000$⁢75,000 46 40 86 Above $75,000$⁢75,000 68 71 139 Total 200 192 392 State the conclusion of the hypothesis test at the 0.010.01 level of significance.
complaint and, if so, whether the complaint was medical or nonmedical in nature. After a year, a tally from these patients was collected to count number who left the HMO voluntarily. Here are the data on the total number in each group and the number who voluntarily left the HMO: No complaint Medical complaint Nonmedical complaint Total A certain health maintenance organization (HMO) wishes to study why patients leave the HMO. A SRS of 423 patients was taken. Data was collected on whether a patient had filed a 177 111 135 Left 64 27 50 If the null hypothesis is Ho : pı = P2 = P3 and using a = 0.05, then do the following: (a) Find the expected number of people with no complaint who leave the HMO: (b) Find the expected number of people with a medical complaint who leave the HMO: (c) Find the expected number of people with a nonmedical complaint who leave the HMO: (d) Find the test statistic: (e) Find the degrees of freedom: (f) Find the critical value: (g) The final conclusion is OA. We…

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