Question
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
  1. What is the range of marks?
  2. What is the highest mark?
  3. Which mark is occurring more frequently?

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