1. Which sampling method is the MOST appropriate in selecting people from a company's employee list to interview about their education level?

a) Simple random sampling, because the people in the sample are accessible and available

b) Stratified sampling, because there are specific subgroups to investigate

c) Systematic sampling, because it is difficult to identify items using a simple random sampling method

d) Cluster sampling, because the studied population is spread across a wide area such that simple random sampling would be difficult to implement

e) All the above sampling methods

1. Which of the following obtains data from a subset of a population to evaluate traits of the population?

a) A census

b) An experiment

c) An observational study

d) A sample survey

e) A cross-sectional survey