Question

In a construction of histrogram the class intervals are reprented on

Answer 1

In the construction of a histogram the class intervals are marked by difference of the numbers marked in the lower line

ie, on the construction of a histogram we draw two lines one in the left side and one in down and in the line drawn in the left we write the frequency number according to our wish and in the line drawn down we write the number that is 5 ,10 ,15... in this the class intervals are 5 .