Frequency Distributions — O/L Mathematics

How do I practise Frequency Distributions?

1 question with a worked solution

1. In a grouped frequency distribution, a class interval is given as 20 - 30. What is the class mark (mid-value) of this class interval?
   1. A) 10
   2. B) 24.5
   3. C) 25.5
   4. D) 25
   Check my answer

   Correct answer: D) 25

   The class mark (mid-value) of a class interval is the average of its limits: (lower limit + upper limit) / 2 = (20 + 30) / 2 = 25.

   Show worked solution

   Step 1: Formula: Mid-value = (Lower limit + Upper limit) / 2. Step 2: Substitute values: (20 + 30) / 2 = 50 / 2 = 25. Answer: 25.
   Modelled on: the O/L Mathematics examination pattern

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Where does Frequency Distributions fit in the syllabus?

Grade 10 · Term 3