Question

Class intervals in a grouped frequency distribution are given as 4-11, 12-19,20-27,
28 - 35, 36 - 43. Write the next two class intervals. (i) What is the length of each class
interval? (ii) Write the class boundaries of all classes, (iii) What are the class marks of each clclass
If you answer it I will mark as branilest answer​

Answer 1

Please refer to the picture. I believe this should answer your question.