WGU D204 Questions with Verified answers
A "good" data analyst can _______ ______; a "great" analyst can _____ ____
______ ________. Ans✓✓✓ A "good" data analyst can perform analyses; a
"great" analyst can communicate the results effectively.
A conclusion based on ____ is a common mistake on both ______ & -____
models. Ans✓✓✓ A conclusion based on correlation is a common mistake on
both predictive and data mining models.
Data analysis is often seen as a combination of ______ and ______. Ans✓✓✓
Value & Difficulty
Decomposition of time series data is essential in knowing what? Ans✓✓✓
Whether any patterns in the data are true trends that should be recognized
Define: Application Ans✓✓✓ Apply the relevant rules to the facts that created
the issue
Define: Causation Ans✓✓✓ When there is a real-world explanation for why
something is logically happening; it implies cause and effect
Define: Classification Ans✓✓✓ When the analyst wants to assign an item to a
specific category based on various conditions.
Define: Clustering Ans✓✓✓ The groupings are unknown, and the analyst wishes
to determine if the objects belong to any groups, and if so, how many groups
exist.
, Define: Conclusion Ans✓✓✓ State the most likely conclusions using the logic of
the application section and whether there has been a violation.
Define: Correlation Ans✓✓✓ A relationship based on two variables.
Define: data acquisition (data collecting) Ans✓✓✓ Frequently retrieved from a
database
Define: Data Ethics Ans✓✓✓ Doing the right thing with data, considering the
human impact from all sides, and making decisions based on your brand values.
Define: Data Exploration Ans✓✓✓ The analyst begins to understand the basic
nature of data and the relationships within it
Define: Data Privacy Ans✓✓✓ Responsibly collecting, using and storing data
about people, in line with the expectations of those people, your customers,
regulations and laws.
Define: discovery phase Ans✓✓✓ 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: Issue Ans✓✓✓ State the legal issues to be discussed.
Define: Keys Ans✓✓✓ Used to establish and identify relationships between
tables and also to uniquely identify any record/row of data inside a table.
A "good" data analyst can _______ ______; a "great" analyst can _____ ____
______ ________. Ans✓✓✓ A "good" data analyst can perform analyses; a
"great" analyst can communicate the results effectively.
A conclusion based on ____ is a common mistake on both ______ & -____
models. Ans✓✓✓ A conclusion based on correlation is a common mistake on
both predictive and data mining models.
Data analysis is often seen as a combination of ______ and ______. Ans✓✓✓
Value & Difficulty
Decomposition of time series data is essential in knowing what? Ans✓✓✓
Whether any patterns in the data are true trends that should be recognized
Define: Application Ans✓✓✓ Apply the relevant rules to the facts that created
the issue
Define: Causation Ans✓✓✓ When there is a real-world explanation for why
something is logically happening; it implies cause and effect
Define: Classification Ans✓✓✓ When the analyst wants to assign an item to a
specific category based on various conditions.
Define: Clustering Ans✓✓✓ The groupings are unknown, and the analyst wishes
to determine if the objects belong to any groups, and if so, how many groups
exist.
, Define: Conclusion Ans✓✓✓ State the most likely conclusions using the logic of
the application section and whether there has been a violation.
Define: Correlation Ans✓✓✓ A relationship based on two variables.
Define: data acquisition (data collecting) Ans✓✓✓ Frequently retrieved from a
database
Define: Data Ethics Ans✓✓✓ Doing the right thing with data, considering the
human impact from all sides, and making decisions based on your brand values.
Define: Data Exploration Ans✓✓✓ The analyst begins to understand the basic
nature of data and the relationships within it
Define: Data Privacy Ans✓✓✓ Responsibly collecting, using and storing data
about people, in line with the expectations of those people, your customers,
regulations and laws.
Define: discovery phase Ans✓✓✓ 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: Issue Ans✓✓✓ State the legal issues to be discussed.
Define: Keys Ans✓✓✓ Used to establish and identify relationships between
tables and also to uniquely identify any record/row of data inside a table.
