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Question 90Asked in RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)

Calculate the population standard deviation of the data 13, 17, 23, 26, 31, 28, 15, 34, 17,

Calculate the population standard deviation of the data 13, 17, 23, 26, 31, 28, 15, 34, 17, and 26. (Round off your answer to two decimal places.)
  1. A7.18
  2. B7.26
  3. C6.81
  4. D6.19
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Correct answer: (C) 6.81

From RRB JE CBT-1 PYQ 25 Feb 2026, Shift 3 (4:30 PM)

This is question 90 of RRB JE CBT-1 PYQ 25 Feb 2026, Shift 3 (4:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.