The GATE Grind

GATE 2021 MN – Question 16

Engineering Mathematics · Probability and Statistics · 1 mark · Multiple choice

Which set consists only of measures of dispersion?

  1. Standard deviation, range and mode
  2. Standard deviation, range and interquartile range
  3. Variance, range and median
  4. Interquartile range, median and mode

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Show answer and explanation

Correct answer: (B) Standard deviation, range and interquartile range

Explanation

Standard deviation, range and interquartile range all quantify spread, so B. Median and mode describe location or central tendency rather than dispersion. Variance is a spread measure, but its option also includes the median.

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