18: Tables in Python (3 of 3) Last updated Sep 18, 2022 Save as PDF 17.5: Summary statistics for DataFrames 18.1: Queries Page ID39326 Stephen DaviesUniversity of Mary Washington via allthemath.org ( \newcommand{\kernel}{\mathrm{null}\,}\) 18.1: Queries18.2: The .groupby() method18.3: Looping with DataFrames