3.54 What kind of sample? In each of the following situations, identify the sample as an SRS, a stratified random sample, a multistage random sample, or a voluntary response sample. Explain your answers.

1. (a) There are seven sections of an introductory statistics course. A random sample of three sections is chosen, and then random samples of eight students from each of these sections are chosen.

2. (b) A student organization has 55 members. A table of random numbers is used to select a sample of five.

3. (c) An online poll asks people who visit this site to choose their favorite television show.

4. (d) Separate random samples of male and female first-year college students in an introductory psychology course are selected to receive a one-week alternative instructional method.