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  9. Q471

RRB Group D (Level-1 posts) 2022 · Question 471 of 598

Find the median class of:

  1. A100-150
  2. B150-200
  3. C0-50
  4. D50-100Correct

Answer: D. 50-100

Explanation

Solution: 1. Calculate the cumulative frequency (C.F.) for each class interval: For 0-50: C.F. = 12 For 50-100: C.F. = 12 + 15 = 27 For 100-150: C.F. = 27 + 13 = 40 For 150-200: C.F. = 40 + 10 = 50 2. Determine the total frequency (N): 3. Find (N/2): 50/2 4. Identify the median class: Since 25 falls within the cumulative frequency of 27, the median class is 50-100. Answer: The median class is 50-100.

Source: RRB Group D 2022 Prev. Yr. Paper (18 Aug 2022) (Shift 3) - Prepp · reliable-secondary

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