Answers To All Questions
What term refers to the arrangement and organization of data used in the
analysis process? Correct Answer - dataset structure
What are the activities of the data modeling phase? Correct Answer -
partitioning the dataset into training, validation, and test sets
selecting relevant features for modeling
identifying candidate models and analysis techniques
What are the responsibilities of a database administrator? Correct Answer -
Database administrators ensure the project's data is organized, secured, and
easily accessible by designing, implementing, and maintaining the project's
database system.
data analytics Correct Answer - Analyzing data to extract insights and
inform decision-making.
Includes using various techniques and tools to explore, clean, transform, and
model data and visualize and communicate findings.
data science Correct Answer - A multidisciplinary field involving various
statistical, mathematical, and computational methods to extract meaningful
insights and knowledge from data.
,What is the difference between data analytics and data science? Correct
Answer - Data analytics is the process of analyzing data to extract insights,
while data science involves building and testing models to make predictions.
__________ focuses on developing new algorithms and models, while ___________
focuses on using existing models to analyze data. Correct Answer - Data
science focuses on developing new algorithms and models, while data
analytics focuses on using existing models to analyze data.
(data analytics or data science) involves using statistical and quantitative
methods to analyze data to extract insights and solve problems? Correct
Answer - data analytics
(data analytics or data science) involves using machine learning and statistical
models to build predictive models and make decisions based on data?
Correct Answer - data science
__________ is more research-based, while ___________ is more focused on the
practical applications. Correct Answer - Data science is more research-
based, while data analytics is more focused on the practical applications of
data analytics.
a coming together to solve a business problem through the creative use of
data and statistical modeling to tell a compelling story that drives strategic
action and results in business value Correct Answer - data analytics
a field of study that involves using computational and statistical techniques to
extract insights and knowledge from data Correct Answer - data science
,variable Correct Answer - a container or storage location that holds a
value
True or false? Variables can be manipulated throughout the data analysis
process to achieve the necessary results Correct Answer - TRUE - a
variable is just a container or storage location that holds a value; variables can
be manipulated throughout the data analysis process to achieve the necessary
results
What is the difference between exploratory and confirmatory data analytics
projects? Correct Answer - Exploratory projects involve testing
hypotheses and finding patterns in data, while confirmatory projects involve
verifying existing hypotheses.
When would it be appropriate to do an exploratory data analytics project?
Correct Answer - Exploratory data analytics projects are typically used when
little is known about the data or when researchers look for patterns or trends
that may not have been previously identified.
What kind of project would include creating a dashboard to visualize sales
data and monitor inventory levels for a grocery store chain? Correct
Answer - A data analytics project.
Data analytics projects typically involve analyzing data to identify trends and
patterns and then using this information to make data-driven decisions.
, identify the five broad categories of data analytics projects Correct Answer
- Descriptive
Diagnostic
Predictive
Prescriptive
Exploratory
___________ analytics analyzes past data to identify the root causes of specific
outcomes or events. Correct Answer - Diagnostic analytics
__________ analytics focuses on summarizing past events and understanding
what happened. Correct Answer - Descriptive analytics
___________ analytics uses historical data to forecast future outcomes. Correct
Answer - Predictive analytics
___________ analytics recommends actions that can be taken to optimize or
improve a situation. Correct Answer - Prescriptive analytics
__________ analytics is often used when there is no clear objective or question to
answer, to identify potential trends, patterns, and relationships. Correct
Answer - Exploratory analytics
What role requires the data migration skill of transferring data between
different systems or formats? Correct Answer - database administrator