Class Frequency ------ 0–10 4 10–20 6 20–30 10 30–40 7 40–50 3 (Classes are continuous: a –b means a le x < b.) Using Median = l + hf ( n2 - c ), the median is:

  1. 25
  2. 20
  3. 27.67
  4. 30
Answer

A) 25

n = 30, n2 = 15. The median class is 20 –30 with l = 20, h = 10, f = 10, c = 10. Median = 20 + 1010(15 - 10) = 25. SLO M-09-C-02 · Understanding

Mathematics MCQ · More Measures of Central Tendency MCQs · Practise