14. Felicia is conducting a survey to determine the determine the favorite TV show among her community. Which sampling method would most likely provide a representative sample of the community? A. Divide the community members into age groups of equal size, and survey 5 members chosen randomly from each age group. B. Divide the community members into three age groups of equal size, and survey 10 randomly chosen people from the oldest age group and 10 randomly chosen people from the youngest age group. C. Survey 40 people over the age of 50. D. Survey 40 people under the age 20.

Identify the sampling techniques used. Explain. After a hurricane, a disaster area is divided into 200 equal grids. Fifty of the grids are selected, and every occupied household in the grid is interviewed to help focus relief efforts on what residents require the most. What type of sampling is used? O A. Cluster sampling is used, since the disaster area is divided into grids, and some of those grids are selected and everyone in those grids is interviewed. B. Stratified sampling is used, since the disaster area is divided into grids, and some of those grids are selected and everyone in those grids is interviewed. C. Stratified sampling is used, since the disaster area is divded into grids, and a random sample is taken from each grid. O D. Cluster sampling is used, since the disaster area is divded into grids, and a random sample is taken from each grid.

An online university wants to invest in a new tutoring program. Before they make the commitment, the research team wants to know how many students enrolled in the university would actually use the tutoring program. They decided to conduct a survey to find out. The institution has 4,000 undergraduate students. How many students would you survey? How would you choose them? (Be specific in your sampling method description) Adam got the name of all 4,000 students in the university and put their names in a hat. He then drew 300 names. What do you think of Adam’s survey? Explain your answer. Sarah asked all currently enrolled seniors. What do you think of Sarah’s survey? Explain your answer.

Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. After a tsunami, a disaster area is divided into 250 equal grids. Thirty of the grids are selected, and every occupied household in the grid is interviewed to help focus relief efforts on what residents require the most. What type of sampling is used? A. Stratified sampling is used, since the disaster area is divded into grids, and a random sample is taken from each grid. B. Cluster sampling is used, since the disaster area is divded into grids, and a random sample is taken from each grid. C. Stratified sampling is used, since the disaster area is divided into grids, and some of those grids are selected and everyone in those grids is interviewed. D. Cluster sampling is used, since the disaster area is divided into grids, and some of those grids are selected and everyone in those grids is interviewed. What potential sources of bias are present, if any? Select all that apply. A. Certain grids…