Questions and Answers Verified Answers

1 / 33

WGU D204 Masters of Data Analytics Journey 2023 Questions and Answers (Verified Answers) 1.Data scientists are able to find , , and in unstruc- tured data. ANS order, meaning, and value 2.What is involved in the planning phase? ANS 1. Defining goals 2.Organizing resources 3.Coordinate people 4.Schedule project

• What is involved in the wrangling phase? ANS 5. Get data

6.Clean data 7.Explore data 8.Refine data

• What is involved in the Modeling phase? ANS 9. Create model

10.Validate model 11.Evaluate model 12.Refine model 1 / 4

2 / 33

• What is involved in the Applying phase? ANS 13. Present model

14.Deploy model 15.Revisit model 16.Archive assets

• are programming languages that are very fre-

quently used for data manipulation and modeling. ANS Python or R

• are general-purpose languages that are used for the

back end, the foundational elementsterm-26 of data science, and they provide maximum speed. ANS C, and C++, and Java

• is a language for working with relational

databas- es to do queries and data manipulation. ANS SQL 9.What does SQL stand for? ANS structured query language 10.This is where you actually create the statistical model and you do the linear regression. You do the decision tree. You do the deep learning neural network. ANS Modeling 2 / 4

3 / 33

11.These are the developers, and the system architects, the people who fo- cus on the hardware and the software that make data science possible ANS Data engineers 12.This is the phase of collecting data. ANS Data acquisition 13.Which phase? - Working with stakeholders to help them ask better ques- tions so that both they and you understand the outcome. ANS Discovery 3 / 4

4 / 33

14.What are the 4 parts of data analytics cycle? ANS Planning, Wrangling, Model- ing and Applying 15.This phase is also known as the discovery phase. During this phase, an analyst defines the major questions of interest that need to be answered, un- derstand the needs of the stakeholders, and assess the resource constraints in the project. ANS Business understanding

• is the person who champions the vision of

the project and has the authority to allocate resources. ANS The project sponsor

• is responsible for making sure things get done

on time and within budget and removes roadblocks. ANS Project manager

• is when new requirements are added to the project

that increases the time/resources needed to complete it. ANS Scope creep 19.What are the 3 types of analysis? ANS Descriptive, Predictive, Prescriptive

• / 4