Fleming Lawson

06/06/2023 · Junior High School

A teacher returns an exam with possible scores ranging from 0 to 100 . The students suspect that the majority of them performed poorly on the exam and request summary statistics. The teacher provides the mean, which was 72 , as a summary statistic. A total of 400 students took the exam. Some of the students find the mean to be high, based on talking to other students. They take a random sample of 15 students, and they find that the mean equals 71.5 while the median equals 62 . Based on this result, we conclude that: All of the answer options are correct. there are possibly some large outliers in these data. \( 50 \% \) of the students barely managed to pass the exam. exam scores are likely right-skewed.