WorksheetsData Analysis Worksheet
Total questions: 5
Worksheet time: 3mins
A retail company wants to identify the reasons for a decline in product sales over the last quarter. Which type of data analysis is most appropriate for this task?
Predictive analysis
Descriptive analysis
Diagnostic analysis
Prescriptive analysis
During a quarterly review, a manager requests a report summarizing last month’s revenue trends. Which analysis type best fits this need?
Predictive analysis
Prescriptive analysis
Descriptive analysis
Inferential analysis
A company uses past customer purchase data to recommend products on their website. This is an example of:
Prescriptive analysis
Diagnostic analysis
Predictive analysis
Exploratory analysis
In a data analysis project, what is the first critical step before collecting data?
Writing SQL queries
Defining the problem statement
Cleaning existing datasets
Choosing visualization tools
Which of the following best describes the role of a data analyst in an organization?
Designing machine learning algorithms from scratch
Collecting, cleaning, and interpreting data to support decisions
Setting up computer hardware for network access
Developing core operating systems
