Description 1. Forecasting techniques rely on the adage that history repeats itself. Many times, though, it has been noted that there is no guarantee that historical patterns will repeat and, even if they do, it can be difficult or impossible to predict when a pattern will repeat itself. Provide two time series examples that seemed stable and predictable until there was a significant change to the pattern. Was there a way to predict the pattern change? Explain. 2. Technically, once a time series model is built, any future value can be forecasted. For example, assume you built a model that forecasts monthly sales of a product given the last 3 months of sales. Using the model, you forecasted monthly sales for the next 6 months, and the model provided very accurate predicted sales. Your manager wants to use your model to predict sales for the next 5 years. What are some problems that could occur with extending the forecast horizon out that far? How would this affect your confidence in the forecasted values for a year? Five years? Explain.
Description Working with strings can lead to various security flaws and errors in software development using the C++ language. What are the common string manipulation errors that can be encountered? How can these errors be resolved and/or limited? What tips can be utilized to identify security vulnerabilities related to strings in C++? Be sure to provide an appropriate source code example to illustrate your points.
Description Please complete this question using hash tables Design a number (ID) generator system that generates numbers between 0-99999999 (8-digits). The system should support two functions: 1. int getNumber(); 2. boolean requestNumber(); getNumber() function should find out a number that is not assigned, then mark it as assigned and return that number. requestNumber() function checks the number if it is assigned or not. If it is assigned returns false, else marks it as assigned and return true. and also answer the following questions Where you able to accomplish the above task? If no, which one(s) did you struggle with and what did you do to seek out help? What did you find most challenging in this exercise? Submit a screen shot of your source code and exercise running
Description 1. Summarize key data distribution concepts including probability mass functions (PMF), probability density functions (PDF), and cumulative distribution functions (CDF). Based on your organization or any organization you are most familiar with, provide an example of a PMF, an example of a PDF, and an example of a CDF, based on the type of data used in the organization. How would you summarize each of these to someone who is not familiar with each of these functions? 2. Suppose you had a six-sided die where each number (1, 2, 3, 4, 5, and 6) has the same probability of showing up (1/6). If the die is rolled an infinite number of times and the number recorded, what will be the average value that shows up? Is the average value one of the actual possibilities (1, 2, 3, 4, 5, or 6)? Why or why not?
Description The Google Play marketplace provides an online mechanism for developers to share their apps. What are some of the statistics associated with existing apps in Google Play? Identify three different apps in Google Play and discuss aspects that make the apps successful. Include the links to your app and cite support for your analysis of what makes it successful (based on best practices) from a minimum of one outside professional or academic reference in APA format.
Description In Week 8, the components left to complete for your Portfolio Project are the Lessons Learned Reflectionand the Final Program. Carefully review the requirements below: Lessons Learned Reflection: Write a two- to three-page summary that outlines the lessons you have learned in this programming course. Reflect on how these lessons can be applied towards more effective coding. Final Program: Write a program that creates a Person class that contains strings that represent the first and last name of a person and their age. You will need to create a Queue class that will store each person in the queue and can sort the queue based on last name or age. Prompt the user of the program to add five people to the queue. Your program should provide the contents of the queue and then sort the queue using the quick sort in two ways: Descending order by last name. Descending order by age. Assemble your Lessons Learned Reflection, your source code, and screenshots of the application executing and results into a single document. Submit your completed Portfolio Project by the posted due date.
Description Implement the algorithm outlined in Exercise # 5 (Chapter 7 of Carrano & Henry, 2015, p. 227) in Java pseudocode. Analyze your algorithm in Big-Oh notation and provide the appropriate analysis. Ensure that your program has the required class and a test class. Compile and submit Exercise 5, the Big-Oh evaluations, and screenshots of your program’s execution and output in a single document. Also attach all appropriate source code in a zip file. Carrano, F. M., & Henry, T. (2015). Data structures and abstractions with Java (4th ed.). Upper Saddle River, NJ: Pearson.
Description You've been a great help to me throughout this class this will be the last time I will need your level of knowledge Server programs are rarely implemented as non-threaded applications, even though that is how you implemented your previous server application. Servers would not be able to provide the necessary throughput unless they used threading to allow for I/O to occur concurrently with servicing client requests. For this Assignment, you will modify your finger server program from Week 6 to use threads. The server should activate a new thread to process each incoming client request, thus allowing client requests to be processed concurrently. To prepare: Start up NetBeans. Open your implementation of the finger protocol from Week 6. By Day 7, modify your finger server program to use threads. The server should activate a new thread to process each incoming client request, thus allowing client requests to be processed concurrently. In addition, write a 5- to 7-page paper documenting the changes that you made and analyzing the impact the changes will have on the overall throughput and latency of the server. Include in your paper responses to these questions: What other solutions might you consider in order to increase throughput and reduce latency? Which solution do you consider to have the better trade-off between performance and complexity? Which solution do you consider to have the better application of modularity, abstraction, hierarchy, and layering? Remember to properly cite your sources according to APA guidelines. Save your implementation of the threaded finger server in a ".zip" file. You will also submit your paper documenting the implementation and analysis of your server separately. Submit your zip file to the Assignment 2 Part 1 - Week 7 submission link and your Word document to the Assignment 2 Part 2 Turnitin - Week 7 submission link. Note: While both Part 1 and Part 2 submissions are required, you will only see your grade for this Assignment in the My Grades area for the Week 7 Assignment 2 Part 1.
Description 1. What are some of the limitations of using Excel for pivot tables/charts? Why does that make software like Tableau more appealing in the workplace? 2. Plotting summarized data will almost always help to convey results more easily. However, there are situations where plotting the summarized data instead of creating a simple table makes data interpretation more difficult. Provide two examples of poor charts/graphs and explain why they are difficult to interpret.
Description write 300 words why computers is still the best in terms of man labor write 300 words why computers is still the best in terms of man labor
