WPC 300 FINAL EXAM ACTUAL QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTION
In an agile approach of analytics what is the first step of the process? Answer -
perform business discovery
In an ETL process, data is loaded into a final target database such as: Answer -
data warehouse
Which of the following data analysis models use optimization techniques?
Answer - prescriptive analytics
Predictive analytics may be applied to __________, which is a set of techniques
that use descriptive data and forecasts to identify the decisions most likely to
result in the best performance. Answer - Prescriptive Analytics
Target is examining their online sales data during the pandemic to understand
what happened. Which kind of analytical technique are they using? Answer -
descriptive analytics
Costco wants to know how to stock their warehouses for a future pandemic
and are using current sales data to help them project the needs. Which kind of
analytical technique are they using? Answer - predictive analytics
, Your professor is considering purchasing a self-driving car that can figure out
the best route and the optimum safe way to drive there without human
intervention. What kind of analytics is the car using to do this? Answer -
prescriptive analytics
Which of the following question(s) can be better answered using data in order
to reach an evidence-based conclusion? Answer - Who will win the NBA
championship?
How many students will enroll for an online class in the Spring?
What is the purchase pattern(s) of our customers?
Which of the following statement(s) about charts is true? Answer - Data ink
can sometimes help tell a richer story
Which of the following violates the principle of data visualization? Answer -
The data-ink ratio should be higher than 1
In for a chart to minimize graphical complexity, the data-ink ratio must be:
Answer - close to 1
Which of the following statements is a reason not to use a table for data
visualization? Answer - Tables cannot easily show trends
When the lie-factor of a graphical chart is more than 1, Answer - the size of the
effect shown in the graph is bigger than the actual effect in the data.
Deleting the grid lines in a chart Answer - Increases the data-ink ratio
What best describes the nature of a rose diagram? Answer - Plots data using a
circular historical plot
ANSWERS WITH COMPLETE SOLUTION
In an agile approach of analytics what is the first step of the process? Answer -
perform business discovery
In an ETL process, data is loaded into a final target database such as: Answer -
data warehouse
Which of the following data analysis models use optimization techniques?
Answer - prescriptive analytics
Predictive analytics may be applied to __________, which is a set of techniques
that use descriptive data and forecasts to identify the decisions most likely to
result in the best performance. Answer - Prescriptive Analytics
Target is examining their online sales data during the pandemic to understand
what happened. Which kind of analytical technique are they using? Answer -
descriptive analytics
Costco wants to know how to stock their warehouses for a future pandemic
and are using current sales data to help them project the needs. Which kind of
analytical technique are they using? Answer - predictive analytics
, Your professor is considering purchasing a self-driving car that can figure out
the best route and the optimum safe way to drive there without human
intervention. What kind of analytics is the car using to do this? Answer -
prescriptive analytics
Which of the following question(s) can be better answered using data in order
to reach an evidence-based conclusion? Answer - Who will win the NBA
championship?
How many students will enroll for an online class in the Spring?
What is the purchase pattern(s) of our customers?
Which of the following statement(s) about charts is true? Answer - Data ink
can sometimes help tell a richer story
Which of the following violates the principle of data visualization? Answer -
The data-ink ratio should be higher than 1
In for a chart to minimize graphical complexity, the data-ink ratio must be:
Answer - close to 1
Which of the following statements is a reason not to use a table for data
visualization? Answer - Tables cannot easily show trends
When the lie-factor of a graphical chart is more than 1, Answer - the size of the
effect shown in the graph is bigger than the actual effect in the data.
Deleting the grid lines in a chart Answer - Increases the data-ink ratio
What best describes the nature of a rose diagram? Answer - Plots data using a
circular historical plot
