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During transpiration, water is given out in the form of water vapor, not liquid.
You are combining sales data from three different sources, each with slightly different column names for the same information (e.g., "Product_ID," "Prod...
In time series decomposition, which component is removed to achieve stationarity?
A data analyst is working with a dataset containing missing values, duplicate entries, and inconsistent formats. What is the most important step in ensu...
In time series forecasting, what is the primary role of the ARIMA model ?
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...
Why is metadata critical for managing large datasets?
Which of the following is NOT true about binary search ?
A dataset contains customer email addresses, and you need to validate the email format. Which of the following methods is most suitable for this task...
Which of the following is the most appropriate way to handle missing values when performing data analysis in Excel using a Pivot Table?
What factor primarily determines the minimum sample size needed for a survey ?
