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Module 1 section 1
Tallying Data

 

To tally (count) data we use frequency tables.

A frequency table contains three columns:
Column 1 : What data
Column 2 : Tally marks: you put a vertical line for every count and every time you have four marks you slash the fifth. In this way you have groups of 5 and it is easier to count.
Column 3: Frequency: count up all the tally marks and put the number of data. This is the frequency.

Example: