Following table offers an illustration of a frequency distribution. The table shows different class intervals (each showing a range of marks in Statistics) and the corresponding frequencies (each showing the number of students).

Following table offers an illustration of a frequency distribution. Th

1.	Following table offers an illustration of a frequency distribution. The table shows different class intervals (each showing a range of marks in Statistics) and the corresponding frequencies (each showing the number of students).
Answer» It is clear from above table that frequency of class interval 10-15 is 4. It means that there are 4 students who have secured marks between 10-15. Likewise, frequency of class interval 20-25 is 8 which means that there are 8 students who have secured marks between 20-25. But, it is not clear that how many students have secured 10 marks in the class interval 10-15 and how many have secured 11 and 14 marks in the same class interval.