1000 persons of London were asked by aB.B.C. investigator to give the nationality of themusic theyliked. He returns the following data:570 liked English650 liked French, and480 liked German440 liked English and French360 liked French and German, and240 liked English and German125 liked all three.Show that the information as it stands must beincorrect.

According to addition rule the total number of unique elements in 3 events is given by the formula…

Answered: 1000 persons of London were asked by a…

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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Students were asked what grades they usually get in school. For twelfth-grade students who responded to this question and the question about how often they wear seatbelts when driving, a summary of frequency counts for combinations of responses to the two questions is as follows. WearsSeatbelt Usual School Grades A and B C D and F Total Never 55 40 17 112 Rarely 129 95 21 245 Sometimes 168 109 9 286 Most times 290 129 25 444 Always 1,059 305 50 1,414 Total 1,701 678 122 2,501 (a) The total number of students in the table is 2,501. What percentage of these 2,501 students said that they usually get A's and B's in school? (Round your answer to one decimal place.) % (b) What percentage of the 1,701 students who said that they usually get A's and B's said that they always wear a seatbelt when driving? (Round your answer to one decimal place.) % (c) What percentage of the 678 students who said that they usually get C's said that they always wear a…
Baldur is very interested in statistics and spinning and he decided to combine these two interests and carry out the following research. He randomly selected 100 Reykjavik residents and asked them two questions. On the one hand whether they want chocolate, ice cream or caramel on their pacifier and on the other hand what gender they are. Questions 4-6 deal with Baldur's survey. Baldur's question: "What do you want most on your spinner?" Has three possible answers:1) chocolate, 2) ice cream, 3) caramel, What type is the variable that Baldur records? 1. Continuous category variables. 2. Continuous number variables. 3. Unordered category variables. 4. Sorted category variables. Baldur is interested in investigating whether there is a connection between the two variables, gender and what people want on their spinner. What kind of hypothesis test should Baldur use? 1. Ki-square test. 2. Hypothesis test for two averages. 3. Variance analysis. 4. Simple linear regression. Assume that the…
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
Do question 1
Solve the problem. The following data gives the number of applicants that applied for a job at a given company each month of 1999: 63, 70, 68, 74, 83, 77, 79, 86, 82, 68, 66, 63. What is the median of the data? O 72 O There is no median. O 70 O 74 W ASUS f4 f5 f6 f7 f8 口京 f9 f10 f11 & 4 7 8. 9. R T Y U 因 5 图
10. Use the following set of data for numbers 10 - 15. x: 471.7 659.3 740.5 790.5 781.3 1047.3 969.5 1206.1 y: 446.3 680.2 725.2 765.3 740.4 1005.6 936.3 1156.8 Load the data into your calculator and find r2r2 Group of answer choices .943 .997 .994 21.54
The following table is prepared to create a frequency histogram for an Italian restaurant in Wilmington, Delaware, based on the restaurant’s daily revenue data collected in the past 92 days. For example, the frequency of 18 means for 18 of the past 92 days, the daily revenue of this restaurant is between $0 and $2,000. Class (revenue) Frequency $0 to $2,000 18 $2,000 to $4,000 21 $4,000 to $6,000 26 $6,000 to $8,000 --- $8,000 to $10,000 11 $10,000 to $12,000 4 What is the width of each class for this distribution? (a) $10,000 (b) $8,000 (c) $5,000 (d) $2,000 What should be the frequency for the 4th class ($6,000 to $8,000)? (a) 100 (b) 92 (c) 12 (d) 10 What is the percentage of days, i.e., the relative frequency, that the restaurant generated between $2,000 and $4,000 in revenue? (a) 0.100 (b) 0.228 (c) 0.325 (d) 0.500
A researcher would like to know whether there is a consistent, predictable relationship between ACT scores and GPA for high school students. A sample of 100 students is obtained from students who took the ACT in their Junior year. Based on the test results and gpa scores, students are classified as high or low for ACT and for GPA. The results are summarized in the following frequency distribution: ACT Score High GPA Low GPA High 39 15 Low 21 25 Based on the data, is there a significant relationship between ACT scores and GPA (a = .05). Compute the appropriate measure of association.
The following are the ages of 30 employees at a local computer company: 29 35 21 28 25 36 44 27 24 24 19 21 33 32 49 25 26 20 32 29 23 37 26 31 29 28 25 25 30 24 0. Find the minimum and maximum of the data. 1. Create a stemplot of the data. 2. Organize the stems of the stemplot. 3. Create a new stemplot by splitting the stems. 4. Make a frequency table of the data, with a first interval of “19-22": 5. Create a histogram of the data from the frequency table. 6. Check your work by replicating the histogram on your calculator.
PLEASE ANSWER NUMBER 3 ONLY. Use number 2 for reference
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