Mathematics 7357: Statistical Sampling Topical Past Paper Questions

(a) A random sample of eight cars was selected from the Large Data Set. The masses of these cars, in kilograms, were as follows. 950 989 1247 1415 1506 1680 1833 2040 It is given that, for the population of cars in the Large Data Set: lower quartile = 1167 median = 1393 upper qua…

Researchers are investigating the average time spent on social media by adults on the electoral register of a town. They select every 100th adult from the electoral register for their investigation. Identify the population in their investigation. [1 mark] (b) (i) State the name o…

An electoral register contains 8000 names. A researcher decides to select a systematic sample of 100 names from the register. Explain how the researcher should select such a sample. [3 marks]