1) When every member of a population has the chance of being selected based on the probability, or frequency, of its representation in that population, you are using which type of sampling?

A. Convenience sample

B. Census sample

C. Random sample

D. Quota sample

2) A poll is planned to determine what proportion of all students favor an increase in fees to support a new track and field stadium. A questionnaire will be published and the first 1000 completed questionnaires will be analyzed. Which of the following errors will be associated with the sample?

A. Sampling errors only

B. Sampling errors and errors due to selection bias

C. Errors due to interviewer bias and selection bias

D. Only non-sampling errors

3) A recent study of breast cancer revealed that...