Consider the data set. 5,7,5,3,2,7,8,9,3,2 Which statement describes a way to find the median of the data set?
A. Add up all the data, and then divide the sum by 10.
B. Add up all the data, and then divide the sum by 20.
C. Order the data set from least to greatest, and choose the numerical middle value of the upper half of the data, where exactly 25% of the data falls above the value.
D. Order the data set from least to greatest, and choose the numerical middle value, where 50% of the data falls above the value. ​