A researcher from Telecommunication Provider is interested in finding the average
usage of monthly Wi-Fi consumption for the household in Petaling district, Selangor. The district consists of nine parliamentary areas. The researcher has selected five parliamentary areas at random, and obtained the information from all the households of the selected parliaments. (i) State the population of this study. (1 mark) (ii) Determine the variable of interest in this study. (1 mark) (iii) Identify the sample of this study. (1 mark) (iv) State the sampling technique used.