Which Python library is primarily used for data manipulation and analysis, offering tools for reshaping, merging, and aggregating datasets?
A data analyst at a bank is tasked with developing a credit scoring model to assess loan applicants' eligibility. Which of the following statistical met...
Which sampling technique is most suitable when a population has distinct subgroups that should be represented proportionally?
Which Business Intelligence tool is renowned for its interactive dashboards and visualization capabilities, commonly used in corporate reporting and dat...
A data analyst is tasked with forecasting quarterly sales for the upcoming year based on the last five years of sales data. Which of the following metho...
When decomposing time series data, which component is primarily targeted to be removed to focus on the longer-term trend?
What is the key difference between SQL and NoSQL databases in terms of data storage?
Which of the following is a key difference between structured and unstructured data?
Which data validation step is crucial to ensure that all entries in a customer email column are correctly formatted?
Which of the following best represents the role of data wrangling in the data analysis process?
