OpenEDG PCAD
OpenEDG PCAD — Certified Associate Data Analyst with Python (PCAD-31-02)
Pcad Pandas AdvancedEnglish
Exam overviewPractice session
Given `df = pd.DataFrame({'a': [1,2,3], 'b': [4,5,6]})`, what does `df.apply(lambda x: x.max() - x.min())` return?
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