Please help me, no nonsense answer plsss how do you differentiate those two kinds of quadratic inequalities?

The dot plot below shows the number of toys 21 shops sold in an hour: dot plot labeled number of toys sold shows 6 dots over 0, 4 dots over 1, 3 dots over 2, 3 dots over 3, 2 dot over 4 and 3 dots over 9 is the median or the mean a better center for this data and why? median; because the data is not symmetric and there are outliers median; because the data is symmetric and there are no outliers mean; because the data is symmetric and there are no outliers mean; because the data is skewed and there are outliers