e$43. A survey of autos parked in student and staff lots at a large university classifiedthe brands by country of origin as seen in the table.StudentStaffAmericanEuropeanAsian10733555105a. What's the marginal distribution of Origin?12b. What's the conditional distribution of Origin for the students' cars?47c. What's the conditional distribution of Origin for the cars driven by thestaff?Ad. Do you think the origin of the car is independent of the type of driver?Explain. (use a side-by-side bar chart to help explain)6y&7u89

Given data: Student Staff American 107 105 European 33 12 Asian 55 47

Answered: 3. A survey of autos parked in student…

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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2. The following are the grade point averages of 30 students recently admitted to the graduate program in the Department of Industrial Engineering and Operations Research at the University of California at Berkeley. 3.46, 3.72, 3.95, 3.55, 3.62, 3.80, 3.86, 3.71, 3.56, 3.49, 3.96, 3.90, 3.70, 3.61. 3.72, 3.65, 3.48, 3.87, 3.82, 3.91, 3.69, 3.67, 3.72, 3.66, 3.79, 3.75, 3.93, 3.74, 3.50, 3.83 (b) Calculate the sample mean x".
C.W: The following frequency table represent the number of iPods sold within 30 days. IPods sold No. of days 5-9 3 10 - 14 6 15 - 19 8 20 - 24 8 25 – 29 5 a- Find the class boundaries and class midpoints. b- Do all classes have the same width? If yes, what is it? c- Prepare the relative frequency and percentage distribution columns. d- What percentage of the iPods sold in six days or fewer?
Ten novels were randomly selected, and the number of pages were recorded as follows: 415 398 402 399 400 405 395 401 412 407 Calculate the median of the data set. Ten novels were randomly selected, and the number of pages were recorded as follows: 415 398 402 399 400 405 395 401 412 407 Calculate the median of the data set. 403.4 407 399 401.5 395
19. The following cumulative frequency and the cumulative relative frequency polygon for the distribution of hourly wages of a sample of certified welders in the Atlanta, Georgia, area is shown in the graph. 40 100 30 75 20 10 25 10 15 20 30 Hourly Wage a. How many welders were studied? b. What is the class interval? c. About how many welders earn less than $10.00 per hour? d. About 75% of the welders make less than what amount? e. Ten of the welders studied made less than what amount? f. What percent of the welders make less than $20.00 per hour? Percent 50 25 LO Frequency
9. At the start of the 2012 season, the Washington Nationals had the following salary values: Total salary for players: $81,336,143 # of players: 30 Average salary/player $2,623,746 Median salary $800,000 What is the shape of the distribution of player salaries? A. Skewed left B. Standard C. Symmetric D. Skewed right
The following graph expresses the number of sick animals found survey of 350 rural properties: a) Classify the variable and How many properties aggregate at most two sick animals? b) What is the percentage of properties that, only a sick animal? c) What is the percentage of properties that dissipate at least one animal sick? d) What was the fashion and also Determine a median.
8. The following table gives the winning scores in the Masters golf tournament for the years from 1973 to 2008. Use it (a) to construct a stem and leaf plot, and (b) to find the sample median of the winning scores in these years.
1. A Statistics class reports the following data on Sex and Eye Color for students in the class: Blue Brown Green/Hazel/Other Total 20 Males 8 Females 4 Total a. Compare the overall percent of students who are female to the percent of females with each eye color. 6 16 12 b. Make a side-by-side bar chart to show the distribution of sex for the different colors. c. Does it seem that eye color and sex are independent? Explain.
Several Grade 10 students wrote a Physical Education exam and their results are below: 77 78 80 75 79 98 82 83 81 77 Phys Ed Test Marks 70 73 79 83 70 74 78 79 73 81 75 77 51 71 79 79 84 71 72 75 a) Determine the mean, median, mode of the set of marks. b) What are the outliers in this situation? c) Jason's mark was 80%. What is Jason's percentile rank?

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