The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school: Salary Number of Graduates
($1,000s)
18-under 21 -
21-under 25 -
24-under 27 -
29-under 30 -
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)The class widths are too large.
D)The second and the third interval overlap.
E)There are too few intervals.

Question

Quizplus · Accepted Answer

The second and third intervals overlap, which means there is a gap in the data where salaries between $25,000 and $24,000 are not accounted for. This can lead to inaccuracies in the frequency distribution.

The Following Class Intervals for a Frequency Distribution Were Developed