Class width of any class interval is ,

Class width of a class interval is defined as

The measure or width of a class interval10-20 is :

Choose the correct alternative among the following : the class width of the class interval 133-139 is,

The class width of the class interval 133-139 is...a) 3 b) 5 c) 6 d) 4

The class marks of a class interval is ..........

Class mark of class interval 60–70 is

Define: class-interval

The width of the class interval 40-50 is

The width of the class interval 20- 30 is

The mid-value of a class-interval of a frequency distribution is 10 and the class-length of each class is 6, The lower class limit of the class-interval is