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 Oxford AQA IGCSE Maths Cumulative Frequency for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.