Question 11 an example of data that are often normally distributed is a. income b. wealth c. test scores d. all of the above how many steps are in research design? a. 4 b. 6 c. 7 d. 9 a set of techniques for collecting, organizing, and interpreting numerical information or data is called? a. research method b. an experiment c. statistics d. variables what involves identifying as accurately as possible all members of the population, then selecting a sample of the desired size where any member of the population has an equal chance of being chosen? a. stratified sample b. simple random sample c. cluster sample d. none of the above