1d.06 Data cleaning techniques — Edexcel Statistics 1ST0 | GradeGen
Edexcel GCSE Statistics · 1ST0
Data cleaning techniques
What you need to know
Understand why collected raw data often requires 'cleaning' prior to further processing, especially when importing it into spreadsheets or statistical software.
Differentiate between genuine, context-accurate statistical anomalies and erroneous outliers during the data pre-processing stage.
Apply digital cleaning techniques in context, such as correctly standardising formats or removing extraneous physical symbols and incorrect notations.
