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Cumulative Frequency
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Upper bounds and running totals

Upper bounds and running totals

Grouped data is split into class intervals such as 10<t≤2010 < t \le 2010<t≤20. The upper bound is the right-hand end of the interval, so this class has upper bound 20.

Cumulative Frequency Lesson

  1. IGCSE
  2. /Maths
  3. /Cumulative Frequency

Step-by-step lessons covering Edexcel IGCSE Maths Cumulative Frequency for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.