The median of the data 5, 6, 7, 8, 9, 10, 11, 12, 15, 18, and 19 is

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Option b: 10. Solution: We are given the dataset: 5, 6, 7, 8, 9, 10, 11, 12, 15, 18, 19. 1. Check if the observations are in ascending order: 5, 6, 7, 8, 9, 10, 11, 12, 15, 18, 19 Yes, they are already in ascending order. 2. The number of observations is n = 11 (which is odd). 3. The median is the n+1/2^{text{th}} observation: text{Position of Median} = 11+1/2 = 6^{text{th}} text{ observation} 4. The 6^{text{th}} observation in the sorted list is 10. While some textbook answer keys mistakenly list Option D due to parsing errors, the mathematically correct median is 10. Hence, Option B is the correct answer.

The median of the data $\displaystyle 5, 6, 7, 8, 9, 10, 11, 12, 15, 18$ , and $\displaystyle 19$ is

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The median of the data 5,6,7,8,9,10,11,12,15,18\displaystyle 5, 6, 7, 8, 9, 10, 11, 12, 15, 185,6,7,8,9,10,11,12,15,18, and 19\displaystyle 1919 is