Q.13. For a particular year, the following is the distribution of the ages (in years) of primary school teachers in Himachal Pradesh:


(i). Write the lower limit of the first class interval.
(ii). Determine the class limits of the fourth class interval.
(iii) Find the class mark of the seventh class interval.
(iv) Determine the class size.

Please find below the solution to the asked query:

iv )  We know ,  Class size : Difference between the true upper limit and true lower limit of a class interval is called the class size.

So,

Class size of given data  = 20 - 16 =  4                                                      ( Ans )


Hope this information will clear your doubts about topic.

  • 2
What are you looking for?