Frequency Distribution Table

Frequency Distribution Table

How to make a frequency distribution table from the given data: example and its solution.

Example

The following data show test scores for 20 students: 81, 56, 74, 52, 78, 81, 77, 91, 85, 60, 75, 69, 97, 84, 70, 67, 80, 74, 74, 88. Organize the data in a frequency table. Use 5 intervals starting from 50-59.

Make a 3 column table.
Name the first row as
'Inverval', 'Tally', and 'Frequency'.

Write the intervals in the first column:
90-99, 80-89, 70-79, 60-69, and 50-59.

Count the data that is in 90-99 interval: 2. (purple)
Draw two tallies in the second column.
And write 2 in the third column.

Next, count the data that is in 80-89: 6. (blue)
Draw six tallies in the second column.
And write 6 in the third column.

By the same way,
fill in the tallies and the frequencies.

To aviod making mistakes,
mark the numbers in the data while counting.