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In a frequency distribution, the class marks of two adjacent classes are 22 and 30.
What are the lower and upper limits of the class whose class mark is 30?

Class 8Organising DataData Handling
  • A26 and 34
  • B25 and 35
  • C30 and 38
  • D22 and 30

Step-by-Step Solution

Class size = 30 - 22 = 8. For class mark 30: lower = 30 - 4 = 26, upper = 30 + 4 = 34.
Answer: A) 26 and 34

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