The code block shown below contains an error. The code block is intended to return a collection of summary statistics for column sqft in Data Frame storesDF. Identify the error. Code block…

Question

Options

• AThe describe() operation doesn't compute summary statistics for a single column - the summary()
• BThe column sqft should be subsetted from DataFrame storesDF prior to computing summary
• CThe describe() operation does not accept a Column object as an argument outside of a list - the list
• DThe describe() operation does not accept a Column object as an argument - the column name
• EThe describe() operation doesn't compute summary statistics for numeric columns - the sumwary()

• A
  6% (2)
• B
  3% (1)
• C
  3% (1)
• D
  88% (30)

Explanation

describe() accepts column names as plain string arguments, not Column objects created by col(). The correct call is storesDF.describe('sqft'). Passing col('sqft') - a Column object - is the error the question targets. Additionally, the code has a typo ('describes' instead of 'describe'), but the identified error in answer D about the Column object argument type is the primary issue being tested. describe() does work on single numeric columns and is distinct from summary(), which computes a different (wider) set of statistics.

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