A data analyst is assessing a dataset with inconsistent categorical entries, such as "USA," "U.S.A," "United States," and "US" for the country field. Wh...
In time series forecasting, which of the following is true regarding the impact of autocorrelation on the model?
Which of the following methods is used to ensure stationarity in time series data, a critical prerequisite for ARIMA modeling?
When performing data normalization, what is the primary purpose?
Why is Exploratory Data Analysis (EDA) considered a crucial step in the data analysis process?
A retailer wants to segment its customers to optimize targeted marketing campaigns. Which of the following approaches would be most effective for custom...
Which type of data visualization is most useful for identifying the relationship between two continuous variables?
When analyzing customer buying behavior, which of the following metrics would be most critical in assessing customer loyalty and retention?
Which of the following is the most accurate example of metadata?
Which of the following best differentiates random sampling from non-random sampling techniques?
