CAPE Applied Mathematics Unit 1 · 2018 · Paper 1 · Question Q42

Item 42 refers to the following contingency table which gives the results of a football team over 40 matches. A \chi^2 test of independence is conducted to determine if the weather has an effect on the result of the matches. The calculation for the expected number of losses in bad weather is

1. (A)\frac{10 \times 12}{40}
2. (B)\frac{23 \times 10}{40}
3. (C)\frac{23 \times 12}{40}
4. (D)\frac{23 \times 17}{40}

This question uses a figure or table from the paper — you'll see it when you practise.