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A grouped table uses classes of equal size. The class mark of the first class is 8 and of the second class is 14.
What is the lower limit of the first class?

Class 8Organising DataData Handling
  • A6
  • B4
  • C10
  • D5

Step-by-Step Solution

Class size = 14 - 8 = 6. Lower limit of first class = class mark - size/2 = 8 - 3 = 5.
Answer: D) 5

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