Answer:
19
Step-by-step explanation:
To find a median of sample the first thing we need to determine is whether the sample size is even or odd. Since we have 11 day period this means sample size is odd.
For odd sample size, we arrange the sample in ascending or descending order and the middle term of the series is median.
In our case the arranged sample in ascending order is as follows:
16,17,18,18, 19,19, 21,22,22,23,25
The middle term is the 6th term which is 19
Answer = 19
