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What is a histogram?

What is a histogram?

Comparison of a bar chart with gaps and a histogram with touching bars, showing height equals frequency for the bar chart and area equals frequency for the histogram

A histogram is used for grouped continuous data such as time, length, or mass. The bars touch because values can occur anywhere within the intervals. In a histogram, the area of each bar represents frequency.

Histograms Lesson

  1. IGCSE
  2. /Maths
  3. /Histograms

Step-by-step lessons covering Edexcel IGCSE Maths Histograms 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.

Lessons

SurdsBoundsDirect and Inverse ProportionQuadratic FormulaFactorising Harder QuadraticsAlgebraic FractionsRearranging Harder FormulaeFinding the Area of Any TriangleThe Sine RuleThe Cosine Rule3d Pythagoras and TrigonometryThe Magnitude of a VectorHistogramsConditional Probability