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

Mid value of class means______

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

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.

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

For a continuos grouped frequency distribution the meidan is given by

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

The width of the class interval 40-50 is

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

The width of the class interval 20- 30 is

Cumulative frequency table is given below. Which type of cumulative frequency is given. Try to build the frequencies of respective class intervals.