I have attached n image showing this dot plot.
Answer:
Median
Step-by-step explanation:
In measures of centre of data are usually; mean, median and mode.
Now, mean is the best measure of centre to use when the data set is symmetric or approximately normal.
Secondly, the best to use when the data is asymmetric as a result of having outliers would be median due to the fact that it exhibits robustness to the outliers.
Since the dot plot contains 2 extreme values which are known as outliers, from the definition given earlier, we can say that the best measure of centre to use will be "median"
