Mathematics (AS & A Level) · May / June 2026 · Paper 63 · Question 6
9709
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One batch of a cake mixture contains X litres of ingredient A and Y litres of ingredient B, where X and Y have the independent distributions X ~ N(25.5, 0.07) and Y ~ N(26.0, 0.08).
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6(a)[5]
6(b)[5]
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