Question: A frequency table of grades has five classes(A, B,C, D, andF) with frequencies of 3 , 12 , 13 , 5 , and 1 respectively.

A frequency table of grades has five classes(A, B,C, D, andF) with frequencies of 3, 12, 13, 5, and 1 respectively. What are the corresponding cumulative frequencies of the fiveclasses?

A 3

B 12

C 13

D 5

F 1

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