Question

what is the definition of class interval

Answer 1

in exclusive frequency distribution like 10-20,20-30 if we take a. group it is called frequency

Answer 2

✔️Class interval consists of the numbers from the upper limit to the lower limit...

✔️There are 2 types of class intervals :-

➖discrette class interval
➖continuous class interval....

➖Class size : is the difference of upper and lower limit of our class.

➖Class limit : it's the smallest and largest observation in the class.

⏹➖Continuous class interval:-

class intervals are defined in continuous pattern.

✔️For ex:-
1-10
10-20
20-30.....................

⏹➖Discrete class interval:-

In it the observation are arranged in the random order as per the data obtained.

✔️for ex:-
1-6
6-12
13-18