In this particular instance, the outlier is the number radically different from the other numbers. For this it would be 10.
The mean or average for the first set of numbers is 359 / 7, so 59.28 with the outlier. Without the outlier it would be 58.166 repeating.
The median of this set of numbers is 55 with the outlier, and 60 without the outlier.
If you mix up mode, median, and mean, I learned it as
Mode mode mode's the most
Average is the mean
Median Median median median always in between
Hope I helped.
