Question

Which of the following is not an aggregate function that can be applied to a DataFrame?

• A. max()
• B. std()
• C. var()
• D. sort()

Hint:

Aggregate functions in pandas typically summarize data, such as calculating the sum, mean, maximum, or standard deviation. Sorting is a different operation and is not considered an aggregation.

Answer 1

The Correct Option is D

In pandas, \texttt{max()}, \texttt{std()}, and \texttt{var()} are valid aggregate functions that can be applied to a DataFrame. \texttt{max()} returns the maximum value, \texttt{std()} computes the standard deviation, and \texttt{var()} computes the variance of the columns in the DataFrame. However, \texttt{sort()} is not an aggregate function; it is used to sort data in a DataFrame. Therefore, the correct answer is \texttt{sort()}.