We have a set of values: 89 71 54 68 83 92 89.
The median is the middle number in a sorted set.
Then, we have to first sort the numbers from least to greatest:
54 68 71 83 89 89 92
We have 7 numbers, so the fourth (4th) number is our median.
The fourth number is 83:
54 68 71 83 89 89 92
Note its had three numbers below and three numbers above.
Answer: the median is 83.