Which of the following is the semi-interquartile range of a distribution?

  • A Mode - Median
  • B Highest score - Lowest score
  • C 1/2 (Upper Quartile - Median)
  • D 1/2 (Upper Quartile - Lower Quartile)
waec 2022furthermathematics

The correct answer is D. 1/2 (Upper Quartile - Lower Quartile)

"Semi" means "half" Interquartile range = Upper quartile - Lower quartile
Semi interquartile range = 1 2 ( upper quartile - lower quartile )
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