My D204 WGU Study Set Exam Questions And Answers Verified 100% Correct

My D204 WGU Study Set Exam Questions And Answers Verified 100% Correct What are critical path activities? - ANSWER Critical path activities are the project tasks that must start and finish on time to ensure that the project ends on schedule. Timely communication is vital to a project, and what applications are available for such a thing? - ANSWER Slack Teams Jira What is a very important privacy law put into place by the European Union that will likely be on the test? - ANSWER GDPR - General Data Protection Regulation Read this IRAC story snippet. What step in the IRAC process is being performed? "Target knew intimate data about a person based on shopping habits" - ANSWER Issue - the legal issue to be discussed Read this IRAC story snippet. What step in the IRAC process is being performed? "Privacy laws inhibit the use of personal information for corporate use" - ANSWER Rule - state the relevant case laws and statutes Read this IRAC story snippet. What step in the IRAC process is being performed? "Since it was based solely on shopping patterns and not private information, there was no legal breach or violation" - ANSWER Application - Apply relevant rules/laws to the facts that created the issue Read this IRAC story snippet. What step in the IRAC process is being performed? "There may have not been a legal violation, but it was still highly unethical." - ANSWER Conclusion - State the most likely conclusions using the logic of the application section and whether there has been a violation How is law confined? - ANSWER It's confined to the territory or the place that created it, not the technology. Why is 80% of data science the preparation step? - ANSWER Because if you put garbage into an analysis, you'll get garbage out (GIGO) What is "Tidy Data" and what does it consist of? - ANSWER Properly prepared and easy to interpret data. Column = variable Row = case One sheet per file One level of observation What are positives to having in-house data? - ANSWER Fastest way to start There may not be as many restrictions You can talk with the creators of the data What are drawbacks to having in-house data? - ANSWER May not be well documented May not be well maintained May not exist Google Trends is an example of what kind of data? - ANSWER Open Data -- Social Media What are three things to remember when scraping data? - ANSWER Respect privacy Respect copyright Visible doesn't mean open What are three ways to collect data? - ANSWER Natural observation Formal interviews Surveys What are three benefits to self-generated data? - ANSWER Millions of variations and trials Can create scenarios that humans wouldn't Needed for creating rules What is Bayes' Theorem? - ANSWER Diagnosis is based on probabilities What type of curve starts off big in the beginning and then tapers off toward the end? - ANSWER Positive skew Valuation at companies, the cost of houses What type of curve starts small at first and then grows near the end? - ANSWER Negative Skew Birth weight What type of skew would a polarizing movie get - where the beginning and end points are very high, with a dip in the middle? - ANSWER U-shape skew What is Principle Component Analysis? - ANSWER Combine multiple, correlated variables into a single component What is factor analysis? - ANSWER Find the underlying common factor that gives rise to multiple indicators What is a term used to describe Central Limit Theorem? - ANSWER "The wisdom of the crowd" What does the role of the data analyst include? - ANSWER Obtain data Scrub data Search for trends or outliers Display data in reports What does the role of research lead include? - ANSWER From the business side Leads research of data Identify key problems Knows the most about the business Actions they take: Find assumptions Drive questions - Is there a better way? Know the business What does the role of project manager include? - ANSWER Get data to the org Clear hurdles Makes insights actionable Communicates results to others Helps team focus on the purpose of the data Representing the team at meetings What are the most important drivers to a data analyst's team? - ANSWER Questions What is the "Medici effect"? - ANSWER Crossing diverse opinions positively affect other