#shorts Statistics | Cumulative frequency

What is cumulative frequency?

Graph of Cumulative Frequency

Why statistics ?

Caculate median , given the following data : {:("Mid - value",20,30,40,50,60,70),("Male (c.f.)",12,25,42,46,48,50):} c.f. = Cumulative Frequency [ Note : Before solving the question , the student should first convert cumulative frequency into class frequency .]

The frequency distribution of life of 90 TV tubes whose median life is 17 months is as follows What is the cumulative frequency of the model class?

The following is the distribution of weights (in kg) of 40 persons. Construct a cumulative frequency distribution (of the less than type) table for the data above.

Graphical representation OF Cumulative frequency || Representation OF ogive OF less than type and more than or equal to type || Examples discussion

Construction of Cumulative frequency distribution