GCSE Maths (Edexcel)

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Grouped Data

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Statistics Statistics

Grouped Data

5:30 Grouped Data
Spec S4
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  • Frequency tables are used to show the number of times each data value occurs in a dataset
  • Creating a frequency table for large sets of discrete numerical data with many possible numbers can be difficult
  • A grouped frequency table is a better way to represent this type of data
  • A grouped frequency table shows how many data values fall within a certain range
  • Grouped frequency tables are useful for both numerical and continuous data
  • In a grouped frequency table, the ranges for the data values are evenly spaced or chosen to show trends more easily
  • Grouped frequency tables are the only type of frequency table that can be used to show the frequencies of continuous data
  • In a grouped frequency table, the frequencies are counted by counting the number of data values in each range
  • Grouped frequency tables provide a clearer picture of the spread of the data and make it easier to identify patterns or trends

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