Since the data-set contains outliers, the median is a better choice, and it is given of 10 ounces.
It depends if the data-set contains outliers or not.
In this problem, the weights of 4 and 5 ounces are outliers, hence the median should be used. There are 19 values, hence the median will be given by the 10th value, which is 10. Hence the median is of 10 ounces.
More can be learned about the median of a data-set at https://brainly.com/question/25215461