Mathematics · JEE | STATISTICS

When converting a 'less than type' cumulative frequency table into a standard frequency distribution table with class intervals, the frequency of a particular class interval is obtained by:

1. A
   Adding the cumulative frequency of the current class to the preceding class
2. B
   Dividing total frequency by 2
3. C
   Multiplying the upper limit by the lower limit
4. D
   Subtracting the cumulative frequency of the preceding class from the cumulative frequency of the current class