Mathematics A H230: Statistical Sampling Topical Past Paper Questions

Some students at a large school are doing a survey about attitudes to school uniform. They want to give a questionnaire to a random sample of 50 students at their school. The school has three entrances. Gabi suggests giving the questionnaire to the first 50 students who arrive at…

A student is investigating changes in the number of residents in Local Authorities in the South-East Region between 2001 and 2011. The scatter diagram shows the number x of residents in these Local Authorities in the age group 8 to 9 in 2001 and the number y of residents in the s…

Jo is investigating the popularity of a certain band amongst students at her school. She decides to survey a sample of 100 students. (i) State an advantage of using a stratified sample rather than a simple random sample. [1] (ii) Explain whether it would be reasonable for Jo to u…