Class intervals in a grouped frequency distribution are given as `5 – 12, 13 – 20, 21 – 28, 29 – 36, 37 – 44.` Write the next two class intervals.
What is the length of each class interval?

Class intervals in a grouped frequency distribution are given as 4 – 11, 12 – 19, 20 – 27, 28 – 35, 36 – 43. Write the next two class intervals. What are the class marks of each class?

Class intervals in a grouped frequency distribution are given as 4 – 11, 12 – 19, 20 – 27, 28 – 35, 36 – 43. Write the next two class intervals. Write the class boundaries of all classes

Class intervals in a grouped frequency distribution are given as 4-11, 12 – 19, 20-27, 28-35, 36-43. Write the next two class intervals.

The width of the class interval 20- 30 is

A grouped frequency distribution table is given below with class mark (mid values of class intervals) and frequencies. Find the class intervals.

In the following grouped frequency distribution table class marks are given. Construct class intervals of the data. (Exclusive class intervals)

Marks of 30 students in mathematics test are given in the adjacent grouped frequency distribution.What are the marks of 6 students who are in 4th class interval?

A company manufactures car batteries of particular type. The life (in years) of 40 batteries was recorded as follows: Construct a grouped frequency distribution table with exclusive classes for this data, using class intervals of size 0.5 starting from the interval 2-2.5.

Ages of 90 people in an apartment are given in the adjacent grouped frequency distribution.How many people are there in the Class Interval 21-30?

Marks of 30 students in mathematics test are given in the adjacent grouped frequency distribution. What are the marks of 6 students who are in 4th class interval?