WGU D204: The Data Analytics Journey: Exam Questions With Answers (Latest Updated ) 100% Verified

This is a full-stack data scientist who can do it all, and do it at absolute peak performance. - Answer unicorn, also known as the rock star, or the ninja. True or False: you can get a unicorn by a team where you can get the people who have all the necessary skills - Answer True _________________________ means algorithms that learn from data. - Answer Artificial intelligence ________________________ are sets of algorithms intended to recognize patterns and interpret data through clustering or labeling - Answer Neural networks True or false: Data science can be done without machine learning. - Answer True If a person feels that they have been harmed by a decision made by a neural network, such as it refused a loan application, they can sue the organization. - Answer right to explanation ____________ is data that is characterized by any or all of three characteristics. Unusual volume, unusual velocity, and unusual variety. - Answer Big data ______________ analytics is about causation - Answer Prescriptive WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 the gold standard for establishing cause and effect is what's called an _________________________________ - Answer Randomized controlled trial (RCT) ___________________ are a whole host of research designs that let you use correlational data to try to estimate the size of the causal relationship between the two variables - Answer quasi-experiments You can do a very good _______________ without needing everything that goes into data science. - Answer prescriptive analysis ____________ may be, at least in theory, impossible. But ____________________ can get you close enough for any practical purposes and help put you and your organization on the right path to maximizing the outcomes that are most important to you. - Answer Causality, prescriptive analytics __________________ is all about getting the insight to do something better in your business. - Answer Business intelligence You can get the analytics and see how well is this performing, who's watching it and when. That's a ______________________________ of a form. - Answer business intelligence dashboard two of the most important things you can do in business intelligence are _________________, to predict what's likely to happen next, and to ___________________. - Answer find trends, flag anomalies ___________________ is what makes business intelligence possible. - Answer Data science ___________________ really shows to the best extent how data science can be used to make practical decisions that make organizations function more effectively and more efficiently. - Answer Business intelligence we have open-source programming languages like _________________ that make more rigorous data analysis inexpensive and relatively easy as well. - Answer R and Python we can convey key performance indicators of our business to ____________, ______________, _____________ using dashboards. - Answer executives, management, and employees WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 we can convey complex information about our business to a wider audience using _____________ that allow users to rapidly consume and digest data - Answer infographics analytics answers what has happened in the past. - Answer Descriptive ________________ data is information that is gathered in non-numerical form that is typically ___________ and may be recoded to try and quantify its meaning. - Answer Qualitative, descriptive ________________ data includes things such as: summaries of written comments on customer cards collected from suggestion boxes at stores, results from interviews of store managers by an outside consultant, a paragraph taken from an employee's self-evaluation on a performance review. - Answer Qualitative Data is made up of a set of ______________, the individual units being measured. - Answer Observations The ____________ is the middle number in a series that is arranged from smallest to largest. - Answer median The ________________ is the most commonly occurring number in the dataset. - Answer mode The fact that the _________ is not close to the ________ or the __________ tells us the distribution of scores are skewed. The scores are not evenly distributed around the ________. - Answer average, median, mode, mean The _______ and the _________ inform a user of the central points in skew of the data. - Answer mean, median If the mean and the median are fairly close to each other means we likely have some type of ________________________ - Answer normal distribution ____________________ attempts to determine which future events are the most likely. - Answer Predictive analytics The standard deviation measures:___________________________________________________________ _________________________________ - Answer how close to the mean is the overall sample. If we have a large standard deviation, that means that a great deal of data lies ___________ away from the ________. - Answer further, mean WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 __________________________ is often used as a way to put standard deviations into perspective. - Answer The 68, 95, 99 rule Keenly observing standard deviations for a dataset can give us insight on __________________ and ____________________________________________________________. - Answer the spread of the data, an idea of how we should interpret the statistics The ____________________ are the ones who have the ultimate control over the success for your project. - Answer stakeholders When you're planning your data project, try to _____________________ that will allow you to leverage the data you currently have. - Answer construct questions Once you've determined what data is at your disposal, then you __________________________________________. - Answer ask actionable and detailed questions Your questions must be aligned with ______________________, which vary depending on your target audience. - Answer strategic goals Frame the question as what question would I like to have an answer to, not _____________________________________? - Answer what is the answer I'm looking for __________________________ can use the research plan in selling the project to the organization. - Answer Business leaders Most __________________________ is concerned with advancing a field of study, and there may not be much of a discussion of budget or budgetary constraints in the research. - Answer academic research The goal is to find ways to best reveal insights that aid and answering the questions or objectives that are posed in the research plan. Typically, these questions fall within three different buckets. Those are: ______________________, __________________________, __________________________ - Answer descriptive question, a predictive question or prescriptive question. ______________________ include mean a median max and men. - Answer Descriptive methods Data sources usually occur within some combination of four different types. The types are WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 ___________________________________________________________________ _________________________________________ - Answer structured, unstructured internal and external What does GDPR stand for? - Answer European Union's General Data Protection Regulation ______________________ which is the actual things that you end up with _______________________, how are the decisions made _______________________, how is the decision communicated - Answer distributive justice procedural justice interactional justice _______________________ is where the algorithm processes your data and makes a recommendation, or suggestion to you and you can either take it or leave it. - Answer Recommendations __________________________ decision making is where advanced algorithms can make and even implement their own decisions, as with self-driving cars. - Answer Human-in-the-Loop ________________ decision making - Many algorithmic decisions are made automatically, and even implemented automatically. But they're designed such that humans can at least understand what happened in them. Such as, for instance, with an online mortgage application. - Answer Human-Accessible ______________________ decision making is when machines are talking to other machines. And the best example of this is the internet of things. And that can include things like Wearables. My smart watch talks to my phone, which talks to the internet, which talks to my car in sharing and processing data at each point. - Answer Machine-Centric Electronic Communications Privacy Act, or the ECPA. This law was passed by congress in 1986, during the age of ____________________. - Answer police wiretapping ________ analytics answers what might happen in the future - Answer Predictive ___________ analytics attempts to answer the toughest question of all, what should we do going forward? - Answer Prescriptive WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 _________________ data is data that can be measured in numerical form. - Answer Quantitative A _______________________________ means that the data are close together around the mean. - Answer small standard deviation What is the 68, 95, 99 rule - Answer 68% of the data are within one standard deviation, above or below the mean. 95% of the observations are within two standard deviations above or below the mean. And 99.7% of the observations are within three standard deviations above or below the mean. the output of research and business environment must not only drive value but be simple enough and easy enough to __________________________. - Answer consume by the end users Who are the end users? - Answer Business managers, executives and even customers who are using the outputs of the research. The three principle sources of U.S. law are: ________________________, ________________________, __________________________ - Answer Common law or judge made law, statutory law and constitutional Law _________________ is law created by courts. In the U.S. and other former British colonies judge's have authority to actually create rules of law that determine individual and organizational rights and responsibilities. - Answer Common Law ___________________ by contrast is law created by representative bodies such as the U.S. Congress. - Answer Statutory law ___________________________ gives the government the authority to act and restricts that authority to ensure that the branches don't overstep their bounds or infringe unnecessarily on individual rights such as rights to fairness and equality. - Answer Constitutional law Privacy is sourced in common law in what we call _______________. It's sourced in statutory law such as GINA and other legislation that protects financial, health and student privacy. And it is sourced in the U.S. Constitution's amendments. - Answer privacy torts It is the traditional method for analyzing legal problems that arise in any context. The legal analysis framework we will be using in this course has four parts: ______________, ______________, ______________, ______________. - Answer Issue, Rule, Application and Conclusion. (or IRAC) WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 __________________________________________ is focused on the obligation of others, and not a lot about what I as a data practitioner am going to do. - Answer Certified Analytics Professional's Code of Conduct ________________________ is our legal analysis tool to understand how to move from identifying a legal issue to reaching a conclusion and a decision about how to take action - Answer IRAC Which activity does an analyst perform in the discovery phase of the data analytics life cycle? A. Identifying business needs B. Identifying outliers C. Cleaning data D. Collecting data - Answer A In which phase of the data analytics life cycle does an analyst build a histogram? A. Data acquisition B. Data exploration C. Discovery D. Predictive modeling - Answer B An analyst applies a statistical formula to obtain the average temperature for a city over the last 50 years.Which phase of the data analytics life cycle is represented by this activity?A. A. Data acquisition B. Exploratory data analysis C. Predictive modeling D. Data reporting - Answer B. An analyst has been tasked with defining data columns that could contain null values.Which activity of the data acquisition phase is represented? A. Collecting data B. Disqualifying data sources C. Detecting missing values D. Transforming improperly formatted text - Answer C. Which activity in the data analytics life cycle occurs during the data acquisition phase and requires the most time and effort from the data analyst? A. Selecting the data sources B. Importing data into a database C. Cleaning data WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 D. Defining goals - Answer C. What might be developed by data analysts when acquiring data from a data warehouse? A. The procedures for extracting files from the data warehouse B. The procedures for updating tables in the data warehouse C. The relational structure of tables D. The SQL queries of data within the tables - Answer D. The SQL queries of data within the tables It's the communication between the ____________________ and the _________________ that helps you to establish rapport with your stakeholders and will make it much easier for them to feel connected to the project and get you the answers you need to be successful. - Answer business stakeholders project team Your ______________ plays the part of both adversary and assistant. They develop the test cases that push the software to its limits, and at the same time, provide the test data and other context that is needed for developers to perform their daily tasks. - Answer QA team Two tools which help to promote effective communication during the testing phase of software development. 1. Creating an issue template for _______________. 2. A _____________. This is where you and your team have an agreed upon set of categories for where bugs fall. - Answer Reporting bugs bug priority matrix Who attends demo day? - Answer the entire agile team, product owners and essential stakeholders, should all be in attendance What can be identified using a box plot? - Answer Interquartile range What will be a consequence of poor attention to detail during the data exploration phase? A. Not enough variables will be considered in the analysis. B. The outcome of the analysis will be misaligned to business needs. C. The analyst will lack insight into the structure of the data set. D. The model will be built using the wrong data set. - Answer C. WGU D204: The Data Analytics Journey(WGU Masters of Data Analytics)Questions And Answers 2023 Which aspect of data exploration occurs when an analyst writes code to compile a bar graph of dog food sales per month? A. Performance of a correlation analysis B. Analysis of data anomalies C. Verification through visualization D. Determination of variabilities - Answer C. An oil company uses robots and sensors to detect how pipeline corrosion changes over time. The collected data is then used in a predictive model that estimates when a pipe should be replaced.How does the predictive model serve this oil company? A. To minimize interruptions from maintenance shutdowns B. To minimize the need for workforce safety training C. To improve compliance with pipeline construction standards D. To improve compliance with pipeline disposal standards - Answer A. During which phase in the data analytics life cycle would a churn analysis be performed? - Answer Predictive analysis Which mistake is commonly made during the predictive analytics phase? A. The data are separated into different sets. B. The variables are separated into response and independent variables. C. The data are prepared before the model is developed. D. The model is developed before the research question is known. - Answer D. Why might a data analyst resample a data set with replacement data in a data mining project? A. Skewed data resulting from outliers B. Too little data for training and testing data sets C. Wrong variables chosen for analyzation D. Misidentification of causation due to correlation - Answer B. A data analyst has identified combinations of sales transactions that frequently occur together in data over the past 5 years.Which phase of the data analytics life cycle is represented by this analysis? A. Data acquisition B. Representation and reporting C. Data mining D. Predictive modeling - Answer C. An analyst realizes that the data set has been reduced significantly, resulting in sample sizes that are too small.In which phase of the data analytics life cycle did this likely occur?