A frequency table of grades has five classes (A,B,C,D,F) with frequencies of 3, 10, 18, 8, and 2 respectively. Using percenatges, what are the relative frequencies of the five classes?  Complete the table.  Grade     Frequency     Relative Frequency  A                     3                          _____ % B                    10                         _____ % C                    18                        _____ % D                     8                        _____ %  F                      2

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