Answer:
5
Explanation:
Arrange the data in order from least to greatest
Make sure to account for all the dots, and recognize that the number line is increasing by 1, but only labels the even numbers.
1,2,3,4,4,5,5,5,6,6,6,7,7
Next, find the number in the middle
The number in the middle is 5,
So the median is 5