Construct a frequency distribution table for the following marks obtained by 25 students in a history test in class VI of a school:
9, 17, 12, 20, 9, 18, 25, 17, 19, 9, 12, 9, 18, 17, 19, 20, 25, 9, 12, 17, 19, 19, 20, 9
(i) What is the range of marks?
(ii) What is the highest mark?
(iii) Which mark is occurring more frequently?

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Frequency distribution of the given marks in mathematics:


Marks obtained in mathematicsTally marksNumber of students (frequency)
1II
2III
3III
4IIII II
5IIII I
6IIII II
7IIII
8IIII
9III



(i) Number of students who have obtained marks equal to or more than 7
= Frequency of 7 + frequency of 8 + frequency of 9
= =
(ii) Numbers of students who have scored below 4
= Frequency of 1 + frequency of 2 + frequency of 3
= =