The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school: Before data was collected, someone questioned the validity of this arrangement. Which of the following represents a problem with this set of intervals?
A) there are too many intervals
B) the class widths are too small
C) some numbers between 18,000 and 30,000 would fall into two different intervals
D) the first and the second interval overlap

Question

The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school:  Before data was collected, someone questioned the validity of this arrangement. Which of the following represents a problem with this set of intervals?
A) there are too many intervals 
B) the class widths are too small 
C) some numbers between 18,000 and 30,000 would fall into two different intervals 
D) the first and the second interval overlap

Quizplus · Accepted Answer

This indicates the problem of the overlapping intervals. It will create ambiguity if any numbers fall between these two intervals.

The Following Class Intervals for a Frequency Distribution Were Developed