For a class of 30 students, the scores in a Mathematics test out of 10 marks were as follows;

4,5,7,2,3,6,5,5,8,9,5,4,2,3,7,9,8,7,7,7,3,4,5,5,2,3,6,7,7,2

What is the range of the distribution?

  • A 2
  • B 7
  • C 8
  • D 9
  • E 10

The correct answer is B. 7

No explanation given
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