Answer:
C. I believe that it is possible to make valid conclusions based on the data collected, but there were only 10 data points collected for each group, and it would be more beneficial to have a larger sample size to get more accurate information. It is good that the survey was considered random, but there are many possible errors that could occur in such a situation. The sixth graders may not accurately remember how many total songs from the past two months they downloaded, though it did seem as if it was showing accurate data so they may have been able to look at their media player to check, which would be better. As long as the conclusions made are only referring to sixth graders and not a larger population, then depending on the conclusion made it can be valid.
Step-by-step explanation:
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