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Grouped data and true class widths

Grouped data and true class widths

Data are often grouped into class intervals, and the frequency tells you how many observations lie in each class. When the variable is continuous and values have been rounded, the written class labels are not the exact boundaries.

Representations of Data Lesson

  1. A Level
  2. /Maths
  3. /Representations of Data

Step-by-step lessons covering Edexcel A Level Maths Representations of Data for A Level Maths. Each lesson breaks down 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data, then works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build fluency with the core pure algebra and calculus toolkit early, since almost every mechanics and statistics topic on the course depends on it.

Lessons