Description
The ordered pairs are on a graph of direct variation. Find the missing value. Show your work for full credit.
(-4, 3) and (x, 6
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Explanation & Answer
Only 1 question posted
Direct variation means the ratio of one variable by the other is always the same
Suppose y = kx
k=y/x = 3/-4
This must also be true of the second point
so 6/x = 3/-4
6/x = 6/-8 (note 3/-4 = 6/-8)
hence x = -8
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MATH 244 Rutgers University Differential Equations Lab Reports
MATLAB in Math 244
Math 244 uses MATLAB assignments to given an opportunity for students to explore the computational side ...
MATH 244 Rutgers University Differential Equations Lab Reports
MATLAB in Math 244
Math 244 uses MATLAB assignments to given an opportunity for students to explore the computational side of differential equations and see how MATLAB can be used to solve and visualize these equations. Assignments and due dates will be decided by individual instructors. In order to complete the assignments, students will need the supplemental MATLAB functions as well as the format files provided here.
In general, it is assumed that students in the Engineering major will already have some exposure to MATLAB before this class, both in their major classes and in Math 251. If a refresher is needed on this material, you can consult the webpage here or discuss it with your instructor. There are also details provided for these particular lab assignments on the webpage here. It may also be helpful to complete the Lab 0 assignment here
to get practice on some of the basics needed to complete these assignments. The MATLAB documentation for any method you want to use (which will come up if you Google it) is also very good once you get a handle on the basic syntax of MATLAB.
Supplemental Files (zip file containing 11 MATLAB functions)
Lab 1: Sample Assignment
, Format File, and Grading Rubric
.
Lab 2: Sample Assignment
, Format File, and Grading Rubric
.
Lab 3: Sample Assignment
, Format File, and Grading Rubric
.
Lab 4: Sample Assignment
, Format File, and Grading Rubric
.
Lab 5: Sample Assignment
, Format File, and Grading Rubric
.
Lab 6: Sample Assignment
, Format File, and Grading Rubric
.
Lab 7: Sample Assignment
, Format File, and Grading Rubric
.
Lab 8: Sample Assignment
, Format File, and Grading Rubric
.
NOTES:
Individual instructors may assign the MATLAB assignments at differing dates throughout the semester.
It is suggested that MATLAB assignments be collected one week after they are assigned.
Statistics Final Assignment
Final Project
Submit Assignment
Due
...
Statistics Final Assignment
Final Project
Submit Assignment
Due
Saturday by
11:59pm
Points
100
Submitting
a file upload
Available
Jan 7 at 12am - Feb 26 at 11:59pm
about 2 months
The purpose of this assignment is to provide an opportunity to apply the concepts in a real life situation and in the process, develop analytic and practical skills. The data for this project is available here: FinalProjectDataFirmSize.xlsxThe data are from the US Small Business Administration yearly report from 2007. The first column shows ranges of firm size for the different categories (firm size refers to the number of people employed by a given firm). For each firm size range, you will find the number of firms that fit within that range as well as the total number of people employed in that range. For example, in the 5-9 employees range, there are a total of 1,060,250 firms and 6,974,591 employees divided among those firms. Column E has the average annual wages for an employee of that firm size. So for the firms with 5-9 employees, on average, an employee earns $31,889.98 annually in wages. Column F shows the amount of revenue received by the firms in the given size. Continuing with our example, in the 5-9 employee category each firm made on average $1,079,870. Column G shows the revenues a company makes per employee they have. For the firms with 5-9 employees, each employee brought in about $164,157.33 in revenue for the firm. Column H shows the total amount a firm spent on wages to employees. For a firm with 5-9 employees, the firm would spend a total of $63,401.86 per year on wages to employees.You must find the midpoint of the firm size range shown in Column A. Do this by finding the average between the minimum and maximum of the range. For the final category (5,000 and up), use 20,000 as the midpoint. Parts of this project can be completed earlier in the course as the topics are covered. Doing the part that relates to the current material as it is covered will help you keep the project on track instead of having a large volume of work to do at the very end.A successful report should contain the following elements:
Visual representations of the data. You may choose which of the chart types covered in the class to use (Scatter, histogram, pie chart, etc). You may choose to do it all in one chart or use multiple charts. Be sure to label your charts well. If you would like to use a different type of chart from one presented in class, you should first have it approved by the instructor.
Determine the correlation between each of the pertinent data labels and justify why this correlation should be calculated and interpret the correlation you found. You can show correlation visually as well, but you must include the numerical calculations. Since Column F (Mean Pay Per Employee) is calculated from Column D (Total Employment) and Column E (Total Annual Payroll), you should not find the correlation between Columns F and D or E. Likewise, the correlation between Columns A and B would not be useful information as well as finding the correlation between column H and either column C or G.
Find an equation for the regression line for the pairs of variables that have a significant relationship from part 2. You must calculate at least 1 regression line but may choose to do more. Interpret your results. Be careful when determining which variable is the dependent one and include a justification for your choice. You may choose to include a visual representation of the data along with the regression line found.
Use the regression line(s) found in 3 to predict values not included in your independent variable sample but that are within the predictive range of the data. Interpret these values. You must have at least 1 prediction for each regression line.
Perform a hypothesis test for the correlation between two of the variables in at least one of the regressions you chose to include in the paper. Be sure to include both the null and the alternative hypothesis, the test being performed and why, the relative test statistic, and the conclusion you can draw from the test. See page 478 in the textbook for step by step directions.
At least one Bible reference that pertains to the subject as well as 2 quality reference articles. The Biblical reference does not have to be a specific verse or passage per say, but include how the topic relates to Biblical principles and ideals. You can relate the Biblical content to statistics in general or to the topic of wages. The outside references should be from reliable sources who have looked into the relationship between your chosen variables of interest. For example, if you chose to focus on the impact of firm size on one of the other variables, you might look for articles on how the size of a company impacts that other variable.
The components outlined above will be integrated into a comprehensive final report paper, similar to a case study but with more information. This report should be APA formatted, a minimum of 5 pages in length, exclusive of appendices, table of contents, references, and cover sheet.This paper will be graded based on the analysis and summary, as well as the overall clarity and effectiveness of the work. See page 19 of the syllabus for a grading rubric.Rubric
Final Project Rubric
Final Project Rubric
Criteria
Ratings
Pts
This criterion is linked to a Learning Outcome
Content: Identification and evaluation of issues
70.0
pts
Exemplary: You demonstrate clear critical thinking of the case and correctly apply principles in your solutions.
63.0
pts
Accomplished: You demonstrate a competent level of critical thinking of the case and correctly apply principles in your solutions.
55.0
pts
Developing: You demonstrate a limited amount of critical thinking of the case and apply some principles in your solutions
45.0
pts
Beginning: You demonstrate little to no critical thinking of the case and fail to apply principles in your solutions
70.0 pts
This criterion is linked to a Learning Outcome
Ethical / Biblical principles – Recognition of appropriate application of ethical / biblical principles
10.0
pts
Exemplary: Well integrated and relevant to the issues identified
7.0
pts
Accomplished: Strong attempt at integration and relevance
5.0
pts
Developing: Limited applicability / relevance
3.0
pts
Beginning: Little to no integrating / relevance
10.0 pts
This criterion is linked to a Learning Outcome
Structure & mechanics – Grammar and spelling, length, APA
20.0
pts
Exemplary: No grammar or spelling errors. All citations are correct. Length matches the required pages.
16.0
pts
Accomplished: Only a few grammar or spelling errors. Citations are correct. Length is less than the required pages.
13.0
pts
Developing: 3-5 spelling or grammar errors. Some citation errors. Length is less than the required pages.
9.0
pts
Beginning: More than 5 spelling or grammar errors. Multiple citation errors. Length is < required pages.
20.0 pts
Total Points:
100.0
Previous
Next
Northern Virginia College Mod 2 Polynomial Functions and Factoring Discussion
It is required to complete a real-world application project. attached file.Choose either problem 46 or problem 48 on page ...
Northern Virginia College Mod 2 Polynomial Functions and Factoring Discussion
It is required to complete a real-world application project. attached file.Choose either problem 46 or problem 48 on page 250. For the problem you choose, answer the
following, showing your calculations:
(a) Determine the vertex and interpret the meaning of (h, k) in the problem situation. (6pts)
(b) Determine the x- and y-intercepts of the function. Interpret the meaning of each in the
problem situation. Are all intercepts meaningful to the given problem? Explain. (6pts)
(c) Many real-world applications have a restricted domain and range. Determine an appropriate
domain and range for the problem you chose.
Math Modeling// R programming
Mathematical Modeling by Linear Algebra (4 problems)#1-2: Exercise 5.8. (This problem was assigned in the last set of home ...
Math Modeling// R programming
Mathematical Modeling by Linear Algebra (4 problems)#1-2: Exercise 5.8. (This problem was assigned in the last set of homework. You are asked to read my solution and redo this problem with my csv data from BB and with your improved R codes with your own style. Again, this problem is long and is considered as two problems): The monthly dataset is NOAAGlobalT.csv. You need to extract the data for the Pacific region first, and then convert the monthly data in annual data. Then you can apply the SVD command. #3-4: Exercise 5.9 (This problem is long and is considered as two problems): The dataset is PrcpRecon5degAnn.csv,Mathematical Modeling by Calculus (3 problems)#5: Exercise 6.1#6: Exercise 6.5#7: Exercise 6.6Probability Modeling#8: (a) Derive the Buffon’s needle problem solution when the needle length is longer than the gap of two lines. (b) Write an R program to simulate the above Buffon’s needle problem in (a).#9: Write an R code for Monte Carlo simulation to calculate the volume of a unit ball in 8-dimensional space.#10: When one roll two dice randomly, it is known that the event of two dice’s sum equal to 7 has a probability 1/6. Write an R code to simulate this process and verify this result.follow the syntax of the book for the coding part
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Most Popular Content
MATH 244 Rutgers University Differential Equations Lab Reports
MATLAB in Math 244
Math 244 uses MATLAB assignments to given an opportunity for students to explore the computational side ...
MATH 244 Rutgers University Differential Equations Lab Reports
MATLAB in Math 244
Math 244 uses MATLAB assignments to given an opportunity for students to explore the computational side of differential equations and see how MATLAB can be used to solve and visualize these equations. Assignments and due dates will be decided by individual instructors. In order to complete the assignments, students will need the supplemental MATLAB functions as well as the format files provided here.
In general, it is assumed that students in the Engineering major will already have some exposure to MATLAB before this class, both in their major classes and in Math 251. If a refresher is needed on this material, you can consult the webpage here or discuss it with your instructor. There are also details provided for these particular lab assignments on the webpage here. It may also be helpful to complete the Lab 0 assignment here
to get practice on some of the basics needed to complete these assignments. The MATLAB documentation for any method you want to use (which will come up if you Google it) is also very good once you get a handle on the basic syntax of MATLAB.
Supplemental Files (zip file containing 11 MATLAB functions)
Lab 1: Sample Assignment
, Format File, and Grading Rubric
.
Lab 2: Sample Assignment
, Format File, and Grading Rubric
.
Lab 3: Sample Assignment
, Format File, and Grading Rubric
.
Lab 4: Sample Assignment
, Format File, and Grading Rubric
.
Lab 5: Sample Assignment
, Format File, and Grading Rubric
.
Lab 6: Sample Assignment
, Format File, and Grading Rubric
.
Lab 7: Sample Assignment
, Format File, and Grading Rubric
.
Lab 8: Sample Assignment
, Format File, and Grading Rubric
.
NOTES:
Individual instructors may assign the MATLAB assignments at differing dates throughout the semester.
It is suggested that MATLAB assignments be collected one week after they are assigned.
Statistics Final Assignment
Final Project
Submit Assignment
Due
...
Statistics Final Assignment
Final Project
Submit Assignment
Due
Saturday by
11:59pm
Points
100
Submitting
a file upload
Available
Jan 7 at 12am - Feb 26 at 11:59pm
about 2 months
The purpose of this assignment is to provide an opportunity to apply the concepts in a real life situation and in the process, develop analytic and practical skills. The data for this project is available here: FinalProjectDataFirmSize.xlsxThe data are from the US Small Business Administration yearly report from 2007. The first column shows ranges of firm size for the different categories (firm size refers to the number of people employed by a given firm). For each firm size range, you will find the number of firms that fit within that range as well as the total number of people employed in that range. For example, in the 5-9 employees range, there are a total of 1,060,250 firms and 6,974,591 employees divided among those firms. Column E has the average annual wages for an employee of that firm size. So for the firms with 5-9 employees, on average, an employee earns $31,889.98 annually in wages. Column F shows the amount of revenue received by the firms in the given size. Continuing with our example, in the 5-9 employee category each firm made on average $1,079,870. Column G shows the revenues a company makes per employee they have. For the firms with 5-9 employees, each employee brought in about $164,157.33 in revenue for the firm. Column H shows the total amount a firm spent on wages to employees. For a firm with 5-9 employees, the firm would spend a total of $63,401.86 per year on wages to employees.You must find the midpoint of the firm size range shown in Column A. Do this by finding the average between the minimum and maximum of the range. For the final category (5,000 and up), use 20,000 as the midpoint. Parts of this project can be completed earlier in the course as the topics are covered. Doing the part that relates to the current material as it is covered will help you keep the project on track instead of having a large volume of work to do at the very end.A successful report should contain the following elements:
Visual representations of the data. You may choose which of the chart types covered in the class to use (Scatter, histogram, pie chart, etc). You may choose to do it all in one chart or use multiple charts. Be sure to label your charts well. If you would like to use a different type of chart from one presented in class, you should first have it approved by the instructor.
Determine the correlation between each of the pertinent data labels and justify why this correlation should be calculated and interpret the correlation you found. You can show correlation visually as well, but you must include the numerical calculations. Since Column F (Mean Pay Per Employee) is calculated from Column D (Total Employment) and Column E (Total Annual Payroll), you should not find the correlation between Columns F and D or E. Likewise, the correlation between Columns A and B would not be useful information as well as finding the correlation between column H and either column C or G.
Find an equation for the regression line for the pairs of variables that have a significant relationship from part 2. You must calculate at least 1 regression line but may choose to do more. Interpret your results. Be careful when determining which variable is the dependent one and include a justification for your choice. You may choose to include a visual representation of the data along with the regression line found.
Use the regression line(s) found in 3 to predict values not included in your independent variable sample but that are within the predictive range of the data. Interpret these values. You must have at least 1 prediction for each regression line.
Perform a hypothesis test for the correlation between two of the variables in at least one of the regressions you chose to include in the paper. Be sure to include both the null and the alternative hypothesis, the test being performed and why, the relative test statistic, and the conclusion you can draw from the test. See page 478 in the textbook for step by step directions.
At least one Bible reference that pertains to the subject as well as 2 quality reference articles. The Biblical reference does not have to be a specific verse or passage per say, but include how the topic relates to Biblical principles and ideals. You can relate the Biblical content to statistics in general or to the topic of wages. The outside references should be from reliable sources who have looked into the relationship between your chosen variables of interest. For example, if you chose to focus on the impact of firm size on one of the other variables, you might look for articles on how the size of a company impacts that other variable.
The components outlined above will be integrated into a comprehensive final report paper, similar to a case study but with more information. This report should be APA formatted, a minimum of 5 pages in length, exclusive of appendices, table of contents, references, and cover sheet.This paper will be graded based on the analysis and summary, as well as the overall clarity and effectiveness of the work. See page 19 of the syllabus for a grading rubric.Rubric
Final Project Rubric
Final Project Rubric
Criteria
Ratings
Pts
This criterion is linked to a Learning Outcome
Content: Identification and evaluation of issues
70.0
pts
Exemplary: You demonstrate clear critical thinking of the case and correctly apply principles in your solutions.
63.0
pts
Accomplished: You demonstrate a competent level of critical thinking of the case and correctly apply principles in your solutions.
55.0
pts
Developing: You demonstrate a limited amount of critical thinking of the case and apply some principles in your solutions
45.0
pts
Beginning: You demonstrate little to no critical thinking of the case and fail to apply principles in your solutions
70.0 pts
This criterion is linked to a Learning Outcome
Ethical / Biblical principles – Recognition of appropriate application of ethical / biblical principles
10.0
pts
Exemplary: Well integrated and relevant to the issues identified
7.0
pts
Accomplished: Strong attempt at integration and relevance
5.0
pts
Developing: Limited applicability / relevance
3.0
pts
Beginning: Little to no integrating / relevance
10.0 pts
This criterion is linked to a Learning Outcome
Structure & mechanics – Grammar and spelling, length, APA
20.0
pts
Exemplary: No grammar or spelling errors. All citations are correct. Length matches the required pages.
16.0
pts
Accomplished: Only a few grammar or spelling errors. Citations are correct. Length is less than the required pages.
13.0
pts
Developing: 3-5 spelling or grammar errors. Some citation errors. Length is less than the required pages.
9.0
pts
Beginning: More than 5 spelling or grammar errors. Multiple citation errors. Length is < required pages.
20.0 pts
Total Points:
100.0
Previous
Next
Northern Virginia College Mod 2 Polynomial Functions and Factoring Discussion
It is required to complete a real-world application project. attached file.Choose either problem 46 or problem 48 on page ...
Northern Virginia College Mod 2 Polynomial Functions and Factoring Discussion
It is required to complete a real-world application project. attached file.Choose either problem 46 or problem 48 on page 250. For the problem you choose, answer the
following, showing your calculations:
(a) Determine the vertex and interpret the meaning of (h, k) in the problem situation. (6pts)
(b) Determine the x- and y-intercepts of the function. Interpret the meaning of each in the
problem situation. Are all intercepts meaningful to the given problem? Explain. (6pts)
(c) Many real-world applications have a restricted domain and range. Determine an appropriate
domain and range for the problem you chose.
Math Modeling// R programming
Mathematical Modeling by Linear Algebra (4 problems)#1-2: Exercise 5.8. (This problem was assigned in the last set of home ...
Math Modeling// R programming
Mathematical Modeling by Linear Algebra (4 problems)#1-2: Exercise 5.8. (This problem was assigned in the last set of homework. You are asked to read my solution and redo this problem with my csv data from BB and with your improved R codes with your own style. Again, this problem is long and is considered as two problems): The monthly dataset is NOAAGlobalT.csv. You need to extract the data for the Pacific region first, and then convert the monthly data in annual data. Then you can apply the SVD command. #3-4: Exercise 5.9 (This problem is long and is considered as two problems): The dataset is PrcpRecon5degAnn.csv,Mathematical Modeling by Calculus (3 problems)#5: Exercise 6.1#6: Exercise 6.5#7: Exercise 6.6Probability Modeling#8: (a) Derive the Buffon’s needle problem solution when the needle length is longer than the gap of two lines. (b) Write an R program to simulate the above Buffon’s needle problem in (a).#9: Write an R code for Monte Carlo simulation to calculate the volume of a unit ball in 8-dimensional space.#10: When one roll two dice randomly, it is known that the event of two dice’s sum equal to 7 has a probability 1/6. Write an R code to simulate this process and verify this result.follow the syntax of the book for the coding part
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