Refer to the following chart showing a distribution of exporting firms: What is the class interval? _____
A) 2
B) 3
C) 3.5
D) 4

Question

Refer to the following chart showing a distribution of exporting firms:  What is the class interval? _____
A) 2 
B) 3 
C) 3.5 
D) 4

Quizplus · Accepted Answer

The class interval is the distance between each class boundary or the range of values that are in each class. Based on the chart, the class interval is 3 as it represents the difference between the lower class boundaries of each class (0, 3, 6, 9, 12). Therefore, the best choice is B as it correctly identifies the class interval as 3.

Refer to the Following Chart Showing a Distribution of Exporting