Answer:
The answer is D ( the last plot on the list, having a midpoint of 21)
Explanation:
In order to find the correct answer, we will use the midpoint, because every other detail in the plots are similar except the median
The data in the plot are 6, 7, 9, 9, 20, 22, 26, 28, 29, 30.
the median numbers are 20 and 22 (6, 7, 9, 9, 20, 22, 26, 28, 29, 30).
Since the median numbers are two, we will calculate it by finding the average of the two numbers as follows:
median = (20 + 22) ÷ 2 = 42 ÷ 2 = 21
and the plot that has a median of 21 is D, so D is the correct answer.