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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:
SalaryNumber of Graduates
($1,000s)
28-under 31-
31-under 35-
34-under 37-
39-under 40-

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 28,000 and 40,000 would not fall into any of these intervals.
d) The first and the second interval overlap.
e) There are too few intervals.

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