WGU D204 Study guides, Class notes & Summaries

WGU D204 Data Analytics Final Exam Questions and Answers 100% Pass The extensive use of data and advanced quantitative analysis to drive fact-based decision-making and actions - Answer- Analytics definition A collection of data sets that are so large or complex that it is impossible to analyze them with traditional databases and tools - Answer- Big data definition Terabytes, petabytes, zettabytes - Answer- Big data (volume) Unstructured - Answer- Big data (variety) Data in motion (stream...

D204 Preassessment Questions and Answers 100% Correct Which activity does an analyst perform in the discovery phase of the data analytics life cycle? a. Collecting Data b. Cleaning Data c. Identifying outliers d. Identifying business needs - Answer- Identifying business needs 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- Data Exploration An analyst applies a sta...

WGU D204 - MW Data Analytics Life Cycle Exam Questions and Answers 100% Pass Many versions but one proposed in this class: 1) Business Understanding 2) Data Acquisition 3) Data Cleaning 4) Data Exploration 5) Predictive Modeling 6) Data Mining/Machine Learning 7) Reporting and Visualization and loop back at this point - Answer- What are the phases of the data analytics life cycle proposed by WGU? This phase is also known as the discovery phase. During this phase, an analyst defines ...

WGU D204 Masters of Data Analytics Journey Exam Questions and Answers 100% Pass Business Understanding (order) - Answer- 1st in Data Analytics Lifecycle Data Acquisition (order) - Answer- 2nd in Data Analytics Lifecycle Data Cleaning (order) - Answer- 3rd in Data Analytics Lifecycle Data Exploration (order) - Answer- 4th in Data Analytics Lifecycle Predictive Modeling (order) - Answer- 5th in Data Analytics Lifecycle Data Mining/Machine Learning (order) - Answer- 6th in Data Analytics Lif...

WGU D204 Data Analytics Journey Exam Questions and Answers 100% pass Data scientists are able to find ______, _________, and _____ in unstructured data. - Answer- order, meaning, and value What is involved in the planning phase? - Answer- 1. Defining goals 2. Organizing resources 3. Coordinate people 4. Schedule project What is involved in the wrangling phase? - Answer- 5. Get data 6. Clean data 7. Explore data 8. Refine data What is involved in the Modeling phase? - Answer- 9. Creat...

WGU D204 - MW Data Analytics Tools and Techniques Exam Questions and Answers 100% Pass What are the defining characteristics of open data? - Answer- data that is free to use with no cost and no restrictions What is the principle of informed consent in research? - Answer- Potential research participants have to be given enough information about the goals, methods, and applications of the research project so they can decide whether they want to participate. Self-generated data refers to wha...

WGU D204 Data Analytics Journey Exam Questions and Answers 100% Pass Data preparation Time - Answer- data preparation 80%, and everything else falls into about 20% GIGO - Answer- garbage in, garbage out. That's a truism from computer science. The information you're going to get from your analysis is only as good as the information that you put into it Upside to In-house data - Answer- It's the fastest way to start., you may actually be able to talk with the people who gathered the dat...

WGU D204 Exam Questions and Answers 100% Pass What are the 7 steps of the data analytics journey? - Answer- Business Understanding (Discovery Phase) Data Acquisition (Data Collecting) Data Cleaning Data Exploration Predictive Modelling Data Mining Reporting & Visualization Define: discovery phase - Answer- Analyst defines the major questions of interest that need to be answered, needs of the stakeholders and assesses the resource constraints of the project Define: data acquisition (d...

WGU D204 Data Analytics Life Cycle Exam Questions and Answers 100% Pass 1. Data scientists are able to find order, meaning, value in Unstructured data as well as: a. Automate processes b. Predict outcomes c. Predict processes d. Provide hidden insight - Answer- ABD 2. Data scientists are able to find __________ in Unstructured data. a. Meaning b. Order c. Outcomes d. Value - Answer- ABD 3. Data science are able to find order, meaning, value in ___________. a. Hidden insight b. Outc...

WGU D204 Data Analytics Exam Questions and Answers 100% Pass Lack of Organization and Lack of Sponsor Support - Answer- What are some of the main reasons that projects fail? Hacking Skills, Math and Statistics, and Domain Expertise - Answer- What is the Venn Diagram for Data Science? Discovery - Answer- Define Goals, Ask Questions, Develop a Problem Statement, Organize Resources Data Acquisition - Answer- Gather Data through API's, Open Data, Passive Data, and internal/external sources...