In an ungrouped frequency distribution of the average age of high school graduates, what would be the boundaries for the class of graduates who were reported to be 18 years old?
A) 17-19 years old
B) 17.5 - 18.5 years old
C) 17.6 - 18.5 years old
D) 17.6 19.5 years old

Question

In an ungrouped frequency distribution of the average age of high school graduates, what would be the boundaries for the class of graduates who were reported to be 18 years old?
A) 17-19 years old 
B) 17.5 - 18.5 years old 
C) 17.6 - 18.5 years old 
D) 17.6 19.5 years old

Quizplus · Accepted Answer

In an ungrouped frequency distribution, the boundaries for a particular class are found by adding or subtracting 0.5 from the lower and upper class limits. Assuming the class limits for the 18-year-old graduates are 17.5 and 18.5 respectively, adding or subtracting 0.5 will give us the class boundaries of 17.5-18.5 years old. Therefore, the correct option is B, which represents the class boundaries with a range of 17.5 - 18.5 years old.

In an Ungrouped Frequency Distribution of the Average Age of High