Exhibit 2-4
Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below:
-Refer to Exhibit 2-4. If one develops a cumulative frequency distribution for the above data, the last class will have a frequency of
A)10
B)100
C)0 to 100
D)80

Question

Exhibit 2-4
Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below: 
-Refer to Exhibit 2-4. If one develops a cumulative frequency distribution for the above data, the last class will have a frequency of
A)10 
B)100 
C)0 to 100 
D)80

Quizplus · Accepted Answer

The last class in the cumulative frequency distribution includes all observations from the last interval endpoint to infinity. Since there are 80 observations in the dataset, the last class will have a frequency of 80.

Exhibit 2-4 Michael's Compute-All, a National Computer Retailer, Has Kept a Record