the first no. in the cf will be the sum of frequencies
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Devika Mj Nambiar answered this
Frequencies are smaller numbers where as cumulative frequenciea will be larger. For instance,take this table:Here it is frequency. In the question it is given 100 forms so if in the second column the final bracket would have been hundred then it is CF, but here it is only 16 so clearly it is frequency table.