Edexcel GCSE Statistics · 1ST0
Specification 2d.01 · Paper 1, Paper 2
Revise: Index numbersA weight represents a category’s relative importance.
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GCSE Statistics · key term
A number indicating how much influence a value or category has in a calculation, such as its frequency or share of spending.
Used by Edexcel
Specification 2d.01 · Paper 1, Paper 2
Revise: Index numbersA weight represents a category’s relative importance.
For a weighted average, divide by the sum of the weights, not the number of categories. Check whether the table gives prices, indices or percentage increases.
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