2b.02 Justifying average selection — Edexcel Statistics 1ST0 | GradeGen
Edexcel GCSE Statistics · 1ST0
Justifying average selection
What you need to know
Justify the statistical rationale for selecting a specific type of average within a given real-world context.
Explain when the mode is uniquely appropriate, such as when evaluating demand for clothing sizes or when analysing entirely non-numeric categorical data.
Explain why the median represents a significantly more appropriate measure than the mean when the underlying data is heavily skewed.
Explain when the mean is advantageous to ensure every data point is accounted for and to allow for the subsequent calculation of standard deviation.
