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Tools in Data Science · End Term · 13 Apr 2025 · January 2025 term · Set QDD1

Question 3: A research team has a pandas dataframe of medical trial p…

Question 3

+1 markOne correct option

A research team has a pandas dataframe of medical trial participants. To quickly identify how many different treatment groups exist, which Pandas method would be most efficient?

  1. A

    `len(set(column))`

  2. B

    `column.count()`

  3. C

    `column.nunique()`

  4. D

    `column.value_counts()`

Show answer

Correct answer

  • C

    `column.nunique()`

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Question 3 of 35 in the IIT Madras BS Tools in Data Science (Tools in Data Science (TDS)) End Term paper sat on 13 Apr 2025, in the January 2025 term (IIT M DIPLOMA AN EXAM QDD3 13 Apr 2025). It carries 1 mark.

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