Median of the given data is -2, 7, 10, 0, -3, -5, -6, 13, 12, -8 .

Arrange in as Ascending order = -8, -6, -5, -3, -2, 0, 7, 10, 12, 13

N = 10 which is even

Hence, median = \(\frac{(\frac{n}{2})th\;term\;+\;(\frac{n}{2} +1)th\;term}{2}\) 

                      = \(\frac{5th\;term\;+\;6th\;term}{2}\) 

                      = \(\frac{-2\;+\;0}{2}\)  = -1