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.

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?

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?

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?

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

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?

The electricity bills (in rupees) of 25 houses in a locality are given below. Construct a grouped frequency distribution table with a class size of 75. 170, 212, 252, 225, 310, 712, 412, 425, 322, 325, 192, 198, 230, 320, 412, 530, 602, 724, 370, 402, 317, 403, 405, 372, 413

In the following grouped frequency distribution table class marks are given. Construct less than cumulative frequencies

In the following grouped frequency distribution table class marks are given. Construct greater than cumulative frequencies.