# Frequency Table

How to make a frequency table from the given data and solve frequency table problems: examples and their solutions.

## Example 1

Make a 3 column table.

In the Interval column,

write the 5 intervals:

from 50-59 to 90-99.

Name the next columns as Tally and Frequency.

Find the values that are in 50-59 interval:

56, 52.

While counting the values,

draw the tally mark 2

in the Tally column.

And write 2 (the number of the data)

in the Frequency column.

Find the values that are in 60-69 interval:

60, 69, 67.

While counting the values,

draw the tally mark 3

in the Tally column.

And write 3

in the Frequency column.

Find the values that are in 70-79 interval:

74, 78, 77, 75, 70, 74, 74.

While counting the values,

draw the tally marks 5 and 2

in the Tally column.

And write 7

in the Frequency column.

Find the values that are in 80-89 interval:

81, 81, 85, 84, 80, 88.

While counting the values,

draw the tally marks 5 and 1

in the Tally column.

And write 6

in the Frequency column.

Find the values that are in 90-99 interval:

91, 97.

While counting the values,

draw the tally mark 2

in the Tally column.

And write 2

in the Frequency column.

So this is the frequency table.

## Example 2

The intervals that are less than 80 are

50-59, 60-69, and 70-79.

And the frequencies of the intervals are

2, 3, and 7.

So the number of the values

that is less than 80 is

2 + 3 + 7.

So 12 is the answer.