The table 3 given below gives the ungrouped frequency distribution of the information in table 1. The table is prepared as follows:
Start from the smallest number in the data and write the numbers one below the other till the largest number. We shall now track the repeated occurrence of numbers by making a tally mark like this '|' next to that number. The fifth mark is drawn diagonally crossing the first four marks ( 
in this way). This makes counting of tally marks easy. Make the sixth tally mark a small distance from the first five. The total number of tallies corresponding to a number in the data is called the frequency of the number.
Such a frequency distribution table makes the numerical data more informative. One glance at the table shows us that the number of students scoring marks between 44 and 58 is very large.
Drawback
The table has a large span.
This drawback is removed in a grouped frequency distribution table.
