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Northern IrelandStatisticsQuick questions
Quality assurance
Quick questions on Quality assurance and control charts - CCEA GCSE Statistics
1short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is only using the mean chart?Show answer
The range chart is needed to detect a change in variability that the mean chart misses.
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