Order the row {5, 6, 1, 27, 2, 7, 12, 15, 9, 18, 19} from the smallest number to the biggest number:
{1, 2, 5, 6, 7, 9, 12, 15, 18, 19, 27}.
The minimum is 1, the maximum is - 27.
The median is the middle number in this row - 9.
The median of left part {1, 2, 5, 6, 7} is 5 and the median of the right part {12, 15, 18, 19, 27} is 18.
From the option A-D only number 11 is absent (numbers 1, 5 and 9 are part of the five-number summary).
Answer: correct choice is D.
