question 25 ellen wanted to find the most pop...
question 25 ellen wanted to find the most popular websites that students at her middle school use to download music. during one lunch period, ellen surveyed 3 students at each cafeteria table. which of the following statements are true? select all that apply. a) ellens sample is a convenience sample. b) ellens sample is a voluntary response sample. c) ellens sample is biased. d) ellens sample can be used to identify the most popular websites for all middle school students in the state.
Answer
# Answer:
A. Ellen's sample is a convenience sample., C. Ellen's sample is biased.
# Brief Explanations:
Ellen surveyed students at cafeteria tables during one lunch - period. This is a convenience sample as it's easy to access these students. It's biased because it only samples students present at the cafeteria during that specific lunch - period and not all middle - school students in the state. It's not a voluntary response sample as students were not self - selected to participate. And the sample cannot represent all middle - school students in the state due to its limited and non - random nature.