Frequency help homework math table

To complete the second column, go through the list of data values and place one tally mark at the appropriate place in the second column for every data value.

The frequency of a data value is often represented by f. A frequency tableis constructed by arranging collected data values in ascending order of magnitude with their corresponding frequencies. Example 5 The marks awarded for an assignment set for a Year 8 class of 20 students were as follows:

To construct a frequency table, we proceed as follows: Step 1: Construct a table with three columns, and then write the data groups or class intervals in the first column. The size of each group is 40. So, the groups will start at 0, 40, 80, 120, 160 and 200 to include all of the data.

Class Intervals (or Groups) When the set of data values are spread out, it is difficult to set up a frequency tablefor every data value as there will be too many rows in the table. So we group the data into class intervals(or groups) to help us organise, interpret and analyse the data.