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A-Level MathematicsYear 2022Q1

4   Question 1 continued Kwame also collects data on total March rainfall, w mm, for each of these 30 years. For a linear regression model of w on t the following summary statistic is found. Residual Sum of Squares (RSS) = 86 754 Kwame concludes that since this model has a smaller RSS, there must be a stronger linear relationship between w and t than between y and t (where RSS = 1 666 567) (e) State, giving a reason, whether or not you agree with the reasoning that led to Kwame’s conclusion. (1) ___________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Turn over 5   Question 1 continued _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___________________________________________ (Total for Question 1 is 7 marks)

Paper Source:9fm0-4b-que-20220628.pdf

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Exam Specification Info

This question is part of the UK A-Level Mathematics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.

Syllabus levelAdvanced Level (A-Level)

SubjectMathematics

Official MarksVariable (2–6 marks)