Question 8 • Concepts in Probability and Statistics
First put the numbers in order: 16, 18, 23, 24, 29, 30. Since there are six numbers, cross off the high/low pairs until the two middle numbers, 23 and 24, are left. Add them and divide by 2: (23 + 24) ÷ 2 = 23.5. So the correct sequence is to order the numbers, cross off pairs, add the leftovers, and divide by 2.
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