Answer :
Answer:
11
Step-by-step explanation:
18, 9, 11, 6, 12, 9, 13
Re-arrange in ascending order
6, 9, 9, 11, 12, 13, 18
Median is the middle value of a given data.
There are 7 entries in the data, therefore the middle term is the 4th one.
Hence, the median of the data is 11