What a histogram shows
What a histogram shows

A histogram is used for grouped numerical data, especially when class widths are different. The bars touch because the data are continuous or treated as continuous.
Step-by-step lessons covering Edexcel AS Level Maths 3.4 Histograms for AS Level Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build fluency in the core algebra, surds and trigonometry topics early, since they underpin the calculus, statistics and mechanics content that follows.