Statistical Measures and Graphs · Data Handling

Cumulative Frequency and Box Plots

Analyzing the spread and skewness of data through quartiles and interquartile range.

Key Questions

  1. 1Why is the median often a better measure of central tendency than the mean for skewed data?
  2. 2What does the length of the whiskers in a box plot reveal about the consistency of a dataset?
  3. 3How do we identify and justify the removal of outliers in a statistical investigation?

National Curriculum Attainment Targets

GCSE: Mathematics - Statistics
Year: Year 10
Subject: Mathematics
Unit: Statistical Measures and Graphs
Period: Data Handling

Suggested Methodologies

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Histograms and Frequency Density

Constructing and interpreting charts where the area, not the height, represents the frequency.

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