Question #1
Would it be better to display the following data on ages of 20 participants in an ungrouped or grouped frequency distribution? Ages: 18, 19, 19, 20, 22, 24, 26, 30, 34, 35, 35, 47, 48, 49, 49, 49, 50, 52, 54, 87
A.
Grouped frequency distribution
B.
Ungrouped frequency distribution
Question #2
Using data on ages of 20 participants below, which (if any) observation could be considered an outlier? Ages: 18, 19, 19, 20, 22, 24, 26, 30, 34, 35, 35, 47, 48, 49, 49, 49, 50, 52, 54, 87
A.
87
B.
49
C.
No observations in this dataset can be considered outliers.
D.
18
E.
All of the listed choices (18, 49 and 87) can be considered outliers.