WAEC Mathematics 2018 Objective — Question 41
Question 41 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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Find the inter-quartile range of 1, 3, 4, 5, 8, 9, 10, 11, 12, 14, 16
- A. 6
- B. 7
- C. 8Correct
- D. 9
Explanation
For 11 ordered values: Q1 (3rd value)=4, Q3 (9th value)=12. IQR=12−4=8.
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