Skip to content

Course home

x
Representations of Data
x

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 on Edexcel A Level Maths Representations of Data, covering 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data. Each one builds up to exam-style questions. 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