Class Frequency ------ 10–20 5 20–30 8 30–40 12 40–50 9 50–60 6 (Classes are continuous: a –b means a le x < b.) The modal class is:

  1. 10–20
  2. 20–30
  3. 40–50
  4. 30–40
Answer

D) 30–40

The modal class has the highest frequency (12). SLO M-09-C-02 · Understanding

Mathematics MCQ · More Measures of Central Tendency MCQs · Practise