A person has decided to construct a frequency distribution for a set of data containing 60 numbers. The lowest number is 23 and the highest number is 68. If 5 classes are used, the class width should be approximately _______.

A. 4
B. 12
C. 9
D. 5

Question

A person has decided to construct a frequency distribution for a set of data containing 60 numbers.  The lowest number is 23 and the highest number is 68.  If 5 classes are used, the class width should be approximately _______.

A.	4
B.	12
C.	9
D.	5

campbell_st · Answer

well the classes need to be of equal width and be able to cotain the max and min scores. The classes should also be easy to collate data into. 

the obvious is 

20 -29, 30 -39, 40 - 49... etc 

hopefully this helps you to find the class width.

anonymous · Answer

thankssss