Example 1
Find the mean, median, mode and range of this data set:
19, 18, 21, 16, 15, 17, 20, 18
Example 2
Which of the three averages does not describe the "middle" of this data set?
100, 99, 97, 97, 96, 98, 95, 72
Example 3
On his first three quizzes, Patrick earned a 15, 18, and 16. (A perfect score would have been 20 points.) What does he need to earn on the next quiz to have a mean score of at least 17?
