Exam-style practice

Statistical skills answer explanations

Review worked answers and explanations for Statistical skills. Aligned to AQA Gcse Geography.

164

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Supported

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Mode

Geographical

Topic

Answer explanations

Question 161 of 164

Review the answer support, then move sideways through the set.

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a. Explain A survey of river water quality found that the 75th percentile for nitrate concentration was 15 mg/L. Explain what this means for the river's water quality. [3 marks]