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.
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.
Step-by-step lessons covering CIE IGCSE Maths Cumulative Frequency for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) format. Start with the Core-tier fundamentals in number and algebra before moving on to the more demanding Extended-only topics like calculus-adjacent algebra and advanced trigonometry.