Question

given the class interval 1-10,11-20,21-30 the 20 is considered in class ​

Answer 1

Answer:

This is the inclusive method of grouped frequency distribution, in which both the lower limit and the upper limit of the class is included in the class intervals. Therefore, we will consider 20 in the class interval 11 - 20.

Answer 2

Answer:

11-20 is the answer of your answe