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Marks of students:
0-10 -> 3, 10-20 -> 5, 20-30 -> 12, 30-40 -> 6, 40-50 -> 4.
Which is the median class?

Class 10Median of Grouped DataStatistics and Probability
  • A20-30
  • B10-20
  • C30-40
  • D40-50

Step-by-Step Solution

. Cumulative frequencies: 3, 8, 20, 26, 30. The cf just exceeding 15 is 20, in class 20-30.
Answer: A) 20-30

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