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Edexcel maths S1
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3

November 2024

2024/2025

A+
7 steps of mathematical models - answer-1. Real world problem observed 2. Mathematical model devised 3. Predictions made 4. Experimental data collected 5. Predictions compared to observed outcomes 6. Statistical test assesses success of model 7. Model is refined Addition rule - answer-P(AUB)=P(A)+P(B)-P(AnB) Coding regression line - answer-Different Substitute coded formula into the coded regression line and simplify Coding standard deviation - answer-x and divide only make a dif...
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