This technical problem involves creating a new dataframe that includes the grade distribution for each student. Given a dataframe of student grades, the code solution should return a new dataframe with the grade distribution for each student.
Given a dataframe, find the row with the maximum value in column 'C' and return the values in columns 'A' and 'B' for that row.
This technical problem deals with how to keep only certain columns in a dataframe using Python. A function is provided that takes in a dataframe and a list of column names, and returns a new dataframe with only the columns in the list. An example is given of input and output.