Mathematics S1,S2,S3 WST01: Regression and Correlation Topical Past Paper Questions
Edexcel A Level Mathematics S1,S2,S3 (WST01) past-paper questions on Regression and Correlation, free. This topic is frequently examined across 12 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
At a dog show, 5 Great Dane dogs were ranked by two judges, judge X and judge Y. Spearman's rank correlation coefficient between the judges' ranks is calculated and a test for positive correlation is carried out at the 5% significance level. (a) State suitable hypotheses for the…
At a local talent show 2 judges were asked to rank 10 performances, in order of preference. The results are shown in the following table. (a) Calculate Spearman’s rank correlation coefficient for these data. Show your working clearly. (3) (b) Stating your hypotheses clearly, test…
A biologist is studying bears. The biologist records the length, $ d $ cm, and the girth, $ g $ cm, of 8 bears. The biologist summarises the data as follows $$ \begin{array}{r} \sum d=1456.8 \quad \sum g=713.2 \quad \sum dg=141978.84 \quad \sum g^{2}=72675.98 \\ S_{dd}=16769.78 \…
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